London – The Thames through time

The Thames through time

Introduction

This is a journey through time, looking at the prehistoric London (The Thames) through time, Landscape based on the book ‘The Post-Glacial Flooding Hypothesis’ – that contains conclusive and extended evidence of Robert John Langdon’s hypothesis, that rivers of the past were higher than today, which changes the history of not only Britain, but the world. In this extract, we look at the Case Study within the book about the Thames. (The Thames through time ).

Case Study – The Thames

The Lower Thames sequence has been thoroughly studied not only because it is one of the largest river systems in the country but also because of its fortuitous exposure in many of the quarries and recent development programmes in and around London. The Thames was diverted into its current valley during the Anglian period, where it proceeded to lay down extensive gravel deposits before reaching the sea. Archaeological interest in the Thames alluvial deposits and the raised beaches of the south-east coast is also due to the presence of significant Lower and Middle Palaeolithic artefacts and hominin remains within these deposits.

The depositional chronology of the Thames gravel terraces has not yet been universally accepted, and the two significant sequences have been proposed by Gibbard (1985) and Bridgland (1994).  This is because the terraces are dated by the artefacts found within them, which are archaeologically dated and not carbon-dated.  The problem with this method is that if the area flooded after the original deposits were laid down, the artefacts could have been washed down from upstream and embedded at random.

(The Thames through time)
Traditional View of the Thames River terraces
(The Thames through time)

The modern floodplain of the Lower Thames, downstream of central London, is bounded either by older Pleistocene sands or gravels at the higher levels or by bedrock. The depositional chronology of the Thames gravel terraces has not yet been universally accepted, and the two significant sequences were proposed by Gibbard (1985).

The SBAB model of floodplain evolution proposes that during the early Holocene, multi-channel braided systems stabilised as some channels narrowed and deepened, and others were progressively abandoned over the course of the Holocene (Brown et al. 1994).

The Lower Thames saw a rise of about 15m in relative sea level between c. 10,000 and c. 6000 BP (Rackham and Sidell, 2000; Sidell, 2003b). This would have had a significant effect on the settlement of the outer and mid estuary floodplain. It has been suggested, for example, that settlement areas along the river margin progressively moved to higher ground as the land below was overtaken by the rising water levels (Rackham and Sidell 2000).

During the early Holocene, the Lower Thames floodplain was a complex environment of peat-forming areas, migrating channels and raised eyots (Sidell 2003a). Often, these eyots were the focus of prehistoric occupation, for example, at Runnymede (Needham 1991; 1992), Westminster, Southwark (Bowsher 1991; Dillion et al. 1991; Merriman 1992), and Bermondsey (Sidell et al. 2002). These areas tended to lie at the junction between the higher ground on the edge of an island and the adjacent peat and alluvium, which preserved evidence of human activity that occurred when river levels were lower (Merriman 1992; Sidell et al. 2002).

The investigations carried out for the Jubilee Line extension have suggested that the sand eyots of Westminster and north Southwark did not complete their formation by the early Holocene as initially believed. Still, instead, they formed in the mid-Neolithic (c. 3500 cal B.C.). This could help explain why there is a lack of Early Neolithic occupation in the floodplain (Sidell 2003b).

An extensive number of boreholes (> 1100) have enabled the British Geological Society to map the extent of flooding in the early Holocene, as it left extensive alluvium up to 10m deep in places, showing the long duration of the raised water levels.

(The Thames through time)
BGS Map of London showing in blue the Alluvium deposited at the end of the LGM.  We have sectioned off A- G areas to look at their cross-sections. 
(The Thames through time)

If we section off (A to G) the Thames and look at the volume and width of the Holocene Thames in comparison to today, we can get an estimation of the discharge of water at its peak during this period.

Increased discharge levels during the Holocene

Cross- SectionCurrent WidthHolocene WidthWidth Increase %Volume Increase – (Holo. – Present =) Cu.m3Increase in Volume
A400m4,425m1,10071,724 – 800 = 70,9248,866%
B650m7,725m1,18871,950 – 1950 = 70,0003,590%
C731m8,450m1,156128,430 – 2924 = 125,5064,292%
D965m7,644m79260,348 – 4825 = 55,5231,151%
E1,207m11,265m93390,122 – 7274 = 82,8807,367%
F1,125m5,230m46538,622 – 7875 = 30,747390%
G1,448m7,242m50058,902 – 11584 = 47318408%
Average932m7426m797% 3723%
(The Thames through time)
(The Thames through time)
(The Thames through time)
(The Thames through time)
(The Thames through time)
(The Thames through time)
(The Thames through time)
Thames River Cross-Sections A – G
(The Thames through time)

The current average discharge is 65.8 m³/s; therefore, with a 3723% increase in the watershed area, we can estimate that, at its peak, the Thames River discharged 2450 m³/s (0.0025 Gt/s or 1314 Gt per annum). 

About the same rate of one of the smaller rivers ‘Susquehanna/Chesapeake River’ (Table 5) in North America – which is minor, in comparison to the eight North American river discharge ratios, which begs the question as the Thames is the largest river in the country, would it not be affected mostly by the meltwater at the end of the last ice age – so, have the scientists got the extent of the alluvium flooding correct?

To investigate further, we need to examine a detailed excavation at the edge of the BGS superficial Alluvium flood map to obtain real evidence of dates and clues about which sediments are present, compared with the ages suggested in past publications.

‘Holocene environmental changes in the Lower Thames Valley’ (Branch et al.,2012) excavated parts of Hornchurch marsh at the edge of the BSG alluvium deposit (Cross-Section D). 

The paper suggests that “Palaeoenvironmental data (publicly or in the form of commercial archaeological reports) on these near-surface sediments indicate that following the end of the last glaciation, the lower reaches of the Thames Valley and its tributaries were inundated by the sea, and marine and estuarine sediments accumulated. Since that time, the evidence suggests that sea level continued to rise at a much slower rate as a response to either glacio-eustatic or sedimentary processes”.  But the idea of any recent “inundation by the sea” can now be easily rebuked.

The reason for this incorrect interpretation of sediments was that past Geologists believed that the LGM was much smaller than previous ice ages – this has now been disproved by new research at sea level data from the Mediterranean (Rohling et al., 2017) as they could only measure by observation the extent of the ice sheets on the surface of the landmass and took for granted the greater the area, the larger the ice mass by estimation.

The conclusion of this study is to show that the last Ice Age was far more significant than previously thought (PCM) as illustrated below in Table 6 and Fig. 30)

(The Thames through time)

Table 6 – (Rohling et al., 20170 Comparison of LGM v PGM by sea-level difference

(Rohling et al.,2009) sea levels over the last 500k years – notice that they are either equivalent or smaller than the LGM
(The Thames through time)

🔍 Validating the 40 Metre Flood Model: A Conservative Benchmark with Room for Expansion

Recent analysis of Thames River terrace data, combined with marine isotope stages (MIS) and global sea-level reconstructions, has confirmed that the highest river terrace associated with the Anglian glaciation (MIS 12) reaches elevations of up to 45–50 metres above the present-day floodplain. These terraces are preserved in locations such as Wimbledon Common, Islington, Dartford Heath, and around the Goring Gap and represent the earliest and most substantial fluvial deposits in the Thames Valley. Their considerable height corresponds with what is now understood to be the largest ice volume of the last 500,000 years, when sea levels were more than 130 metres below modern levels.

In contrast, our working model for reconstructing prehistoric Thames hydrology assumes a maximum flood level of 40 metres above modern—a figure chosen deliberately to provide a conservative and defensible baseline. This height has been used to calculate post-glacial meltwater volume, floodplain extent, and terrace formation through time. Although lower than the peak terrace cuts, 40 metres accurately reflects the likely active flood height during the most extreme meltwater episodes, accounting for factors such as sediment infill, compaction, and subsequent erosion that would have reshaped the original floodplain surface.

River Thames
Sea level minimum equals Ice On land, and hence the River sizes after it melts – (Case Study – River Thames)

That said, the confirmation of higher terrace cuts opens the door for revising the volume model upwards. If we were to use the 45–50 metre elevation as our baseline for MIS 12, the resulting model would show a 12.5% to 25% increase in total flood volume compared to the current 40 metre assumption. This adjustment could significantly strengthen the case for post-glacial aquifer discharge and explain the massive sediment loads and geomorphic features observed downstream. However, such a shift would require recalibration of all terrace heights and their correlation with glacial episodes, which, while feasible, may introduce new assumptions and reduce the clarity of the proportional model.

In conclusion, the existing 40 metre model remains sound—anchored in observable data and consistent with LiDAR-documented terrace formations. Nevertheless, this model should be viewed as a minimum estimate of post-glacial river height and volume. Future work could explore enhanced modelling scenarios using 45–50-metre benchmarks to test the upper limits of Thames flooding during MIS 12. Such refinements would not undermine the current hypothesis but rather strengthen the argument that prehistoric Britain experienced hydrological conditions far more dynamic and extreme than currently acknowledged in traditional archaeological and geological narratives.

📊 Table: Sea-Level Minima and Estimated River Terrace Heights by Glacial Cycle

Glacial Period Marine Isotope Stage (MIS) Approx. Date (ka) Sea-Level Minimum (m below present) % of Maximum Ice Volume Estimated Thames Terrace Height (if MIS 12 = 45 m)
Fifth Glacial (Anglian) MIS 12 ~480 – 430 –130 m 100% 45 m
Penultimate Glacial MIS 6 ~190 – 135 –125 m 96.2% 43.3 m
Last Glacial Maximum MIS 2 ~26 – 19 –120 m 92.3% 41.5 m
Third Glacial MIS 8 ~300 – 245 –105 m 80.8% 36.4 m
Fourth Glacial MIS 10 ~360 – 335 –120 m 92.3% 41.5 m

📚 References

  • Grant, K.M. et al. (2014). Sea-level variability over five glacial cycles. Nature Communications, 5, 5076. DOI: 10.1038/ncomms6076
  • Rohling, E.J. et al. (2009). Relative sea-level and climate change over the past 500,000 years. Quaternary Science Reviews, 28(17–18), 1537–1552. DOI: 10.1016/j.quascirev.2009.02.026
  • British Geological Survey. (n.d.). Quaternary deposits and river terraces of the Thames Valley. Earthwise: The BGS Open Geoscience knowledge base. earthwise.bgs.ac.uk

Dated Geology

This new information has created a problem for Geologists, as their sequences were based on the assumption of more significant ice caps, and consequently, meltwater deposits prior to the last ice age formed the foundations of our geological river terracing.

According to previous publications, only ‘Alluvium’ OIS 1 was laid down on the landscape (as at our Case Study site in the Thames Valley) directly after the last Ice Age, 10k years ago.  But there is no evidence that that is true or that the larger rivers would not have washed the previous deposits further down the stream, making these sequences incorrect; consequently, the ‘River Terrace’ Deposits of:

Kempton Park – Taplow – Hackney – Lynch Hill – Boyn Hill and Black Park are Holocene in origin (or a mixture) and not solely Late Pleistocene as suggested in Geology books.   In practical terms, when we examine boreholes, we should look for the ‘floodplain Terrance’ to indicate the extent of Holocene flooding and ignore the guestimations of gravel deposits.

(The Thames through time)
Figure 31. Traditionally expressed river terrace deposits by ‘guesstimated’ age
(The Thames through time)

This ambiguity is, in fact, pointed out in BGS’s –‘The stratigraphical framework for the Palaeogene successions of the London Basin, the U.K. where it states that “In some areas, notably the north-eastern part of the London Basin, it has proved difficult to subdivide the strata between the Chalk and the London Clay with confidence” and this view is commonplace through the history of British Geology and hence the constant reclassification as shown in their obsolete terms table.

(The Thames through time)
Figure 32. Obsolete terms are a common occurrence in Geology as modern new methods are incorporated. BGS Superficial Deposits Handbook.
(The Thames through time)

This assumption is also highlighted by Lewin et al. (2005), who state –

“Furthermore, their assumption that floodplain gravels were Pleistocene in age was not supported by dating, and work both on the Thames (Robinson, 1992, Fig. 19.2) and more widely elsewhere (Brown et al., 1994) tends to suggest that late dates for overbank sedimentation may generally be constrained by the fact that the gravels beneath are themselves often of considerably later date than was earlier assumed.”

And concluded with “Overall, the skewed distributions suggest rapid autogenic recycling of older materials, with earlier deposits only being preserved beyond the reach of river activity (e.g. in terraces or floodplains which have not been impinged on by later river migration). The exceptions to this are floodplain environments where localised long-term aggradation has permitted the greater preservation of older Holocene units. To obtain evidence from parts of the Holocene that remain less well known, such sites still require discovery and study, whilst commonplace deposits (notably floodplain gravels) would benefit from the application of dating techniques that are less dependent on the fortuity’s preservation of datable organic materials”.

When we look at Palaeolithic sites on a regional scale, such as in the Thames basin, several general problems become apparent. The first is correlation and chronology. By their very nature, terrace fragments may not be unequivocally traceable down a river system. Ideally, a combination of surveying, stratigraphic description and lithological analysis is required to correlate fragments with key sites where more than one formation is present. None of these methods alone can be relied upon; for example, the same lithological content does not necessarily imply time equivalence, especially where rivers are reworking previous gravel terraces. (Brown et al., 1997)

Until the 1950s, archaeology dated the geology, but it is now increasingly the other way around. From the nineteenth century onwards, the traditional chronology of Northern European Pleistocene terraces was based on a combination of hand-axe typology, stratigraphy and counting climatic episodes back in time or from the top of the sequence down. This methodology was based on the belief that axe typology followed a clear progression from what we perceive as crude or simple to elegant or sophisticated, and that this progression occurred at roughly the same rate across different places. This was allied to the belief that a typology represented a ‘culture’.

Chronology

This chronology and methodology have been questioned for a variety of reasons (Green and McGregor, 1980). First, the traditional chronology was at odds with revised Pleistocene chronologies from ocean cores and from new terrestrial sites in North-West Europe, which showed an extremely complex picture of glacial, interglacial, stadial and interstadial stages. The ocean cores, for example, show at least 30 warm/cold cycles, and the terrestrial record has improved through the discovery of more sites and new chronometric dating techniques (Lowe and Walker, 1984; Jones and Keen, 1993).

However, the terrestrial record in Britain still shows major discontinuities in comparison with the ocean record and the much more detailed chronologies from the Netherlands and Germany. A chronology, and it must be noted that there is considerable debate and uncertainty about not only the position of major British stratigraphic units but also the number of pre-Pastonian and post-Hoxnian-pre-Ipswichian climatic cycles present in the British record (Jones and Keen, 1993).

Moreover, given that the river gravel sequences are ‘problematical’, we can now revisit the Holocene ‘Alluvium’ map to see whether the boundaries of the Holocene Thames were even more significant than those shown in the original BGS map.

If we look at the Cross-Section H profile, we see that the area of the Holocene effect increases by at least one mile and is terminated by Boreholes TQ47NE344 and TQ58NW141.

(The Thames through time)
Figure 34. Cross-Section H
(The Thames through time)
(The Thames through time)
BGS map of ‘superficial’ deposits left by the last LGM with cross-section H and the two boreholes (borehole details in Appendix A)
(The Thames through time)

Borehole TQ47NE344 – shows 5.95m of “Brown Silty Sand” before hitting Chalk and TQ58NW141 4.42m of “Loamy Sand and Stones” with a base of “sand and Gravel”.

This increases the Thames Flood Model from a discharge of 2,450 m3/s to 12,250 m3/s, which more accurately reflects the North American Discharge Model.

If we take this new model into account, the Thames valley will look very different to today, with all of the ‘superficial sediments’ being covered by water at the start of the Holocene period, 10 – 6 Ka.

(The Thames through time)
How London probably looked just after the LGM, about 10,000 BCE, with as much water as land and most of it swampy.
(The Thames through time)

We can review the Hornchurch Marshes Paper (Branch et al., 2012) and examine the results to identify outcomes and possible related dates for our new Thames Valley flooding model.

(The Thames through time)
(Branch et al.,2012) Hornchurch marshes investigation
(The Thames through time)

The radiocarbon dates show that the site was inhabited during the early Holocene period “Between −4.15 and −3.83 m O.D., a clay-rich sedimentary unit was deposited probably on the margins of a river channel (floodplain)” This would give us an idea of how much sediment was deposited by the river during the early Holocene, directly after the last ice age.  If we look at boreholes around this site and within a few hundred metres of it, those bored lower, we can develop a working hypothesis.

Borehole TQ58SW:1 – the closest to the site (Appendix A) shows the sand and pebbles go down another 12.8m until it reaches “Coloured Sands and Stones”, whilst Borehole TQ58SW762 shows the names of many more segments, including ‘terrace gravel’ that goes down to 12.2m below the surface – which confirms our Holocene water level set at 40′ or 12.2m.

Between −3.54 m O.D. and −1.74 m O.D., the formation of wood peat represents the creation of more terrestrial conditions at the site. The results of the radiocarbon dating indicate that peat formation commenced at c. 6300 cal. Yr B.P. and ceased at c. 3900 cal. Yr B.P. with the onset of estuarine sedimentation.

Closer inspection of the Lithostratigraphic descriptions and Lithology reveals that the site suffered possible flooding about 6800 yr B.P. as silt deposits are found in unit number 2&3 (Figure 36.) after over 3000 years of flooding since the end of the last ice age and a build-up of ‘Grey Silty Clay and fine sand’ as would be expected.

There is then a sequence of peat (an accumulation of partially decayed vegetation or organic matter. It is unique to natural areas called peatlands, bogs, mires, moors, or muskegs) growth as this become a marsh area because of the Holocene flooding as is a majority of Britain (as we have seen in Fig. 25). This marshland lasted for 1200 – 1600 years (Unit number 4 -7, figure 36.).

Then there seems to be a flood period of about 200 years during which the area was inundated with a deposit of Sand and clay, replacing the marshland peat, dated 5750 – 5330 cal yr B.P. We then see another 1500 years as a marshland, with new peat samples, before another river flood at 3800 BP. The carbon dating of this site provides the evidence we require to finally prove that rivers were not only higher in the Holocene/Mesolithic period, but also remained high to such an extent that they periodically flooded into recent history, as we will now further illustrate.

NB. Extract from the Book ‘Post-Glacial Flooding Hypothesis’

  PODCAST

Author’s Biography

Robert John Langdon, a polymathic luminary, emerges as a writer, historian, and eminent specialist in LiDAR Landscape Archaeology.

His intellectual voyage has been interwoven with stints as an astute scrutineer in government and grand corporate bastions, a tapestry spanning British Telecommunications, Cable and Wireless, British Gas, and the esteemed University of London.

A decade hence, Robert’s transition into retirement unfurled a chapter of insatiable curiosity. This phase saw him immerse himself in Politics, Archaeology, Philosophy, and the enigmatic realm of Quantum Mechanics. His academic odyssey traversed the venerable corridors of knowledge hubs such as the Museum of London, University College London, Birkbeck College, The City Literature Institute, and Chichester University.

In the symphony of his life, Robert is a custodian of three progeny and a pair of cherished grandchildren. His sanctuary lies ensconced in the embrace of West Wales, where he inhabits an isolated cottage, its windows framing a vista of the boundless sea – a retreat from the scrutinising gaze of Her Majesty’s Revenue and Customs, an amiable clandestinity in the lap of nature.

Exploring Prehistoric Britain: A Journey Through Time

My blog delves into the fascinating mysteries of prehistoric Britain, challenging conventional narratives and offering fresh perspectives grounded in cutting-edge research, particularly LiDAR technology. I invite you to explore some key areas of my research. For example, the Wansdyke, often cited as a defensive structure, is re-examined in light of new evidence. I’ve presented my findings in my blog post Wansdyke: A British Frontier Wall – ‘Debunked’, and a Wansdyke LiDAR Flyover video further visualises my conclusions.

My work also often challenges established archaeological dogma. I argue that many sites, such as Hambledon Hill, commonly identified as Iron Age hillforts, are not what they seem. My posts Lidar Investigation Hambledon Hill – NOT an ‘Iron Age Fort’ and Unmasking the “Iron Age Hillfort” Myth explore these ideas in detail and offer an alternative view. Similarly, sites like Cissbury Ring and White Sheet Camp receive re-evaluations based on LiDAR analysis in my posts “Lidar Investigation Cissbury Ring through time” and “Lidar Investigation White Sheet Camp, revealing fascinating insights into their true purpose. I have also examined South Cadbury Castle, often linked to the mythical Camelot56.

My research also extends to ancient water management, including the role of canals and other linear earthworks. I have discussed the true origins of Car Dyke in multiple posts, including Car Dyke – ABC News Podcast and Lidar Investigation Car Dyke – North Section, which suggest a Mesolithic origin 2357. I also explore the misidentification of Roman aqueducts, as seen in my posts on the Great Chesters (Roman) Aqueduct. My research has also been greatly informed by my post-glacial flooding hypothesis, which has helped explain landscape transformations over time. I have discussed this hypothesis in several posts, including AI now supports my Post-Glacial Flooding Hypothesis and Exploring Britain’s Flooded Past: A Personal Journey

Finally, my blog also investigates prehistoric burial practices, as seen in Prehistoric Burial Practices of Britain and explores the mystery of Pillow Mounds, often mistaken for medieval rabbit warrens, but with a potential link to Bronze Age cremation in my posts: Pillow Mounds: A Bronze Age Legacy of Cremation? and The Mystery of Pillow Mounds: Are They Really Medieval Rabbit Warrens?. My research also includes astronomical insights into ancient sites, for example, in Rediscovering the Winter Solstice: The Original Winter Festival. I also review new information about the construction of Stonehenge in The Stonehenge Enigma.

Further Reading

For those interested in British Prehistory, visit www.prehistoric-britain.co.uk, a comprehensive resource featuring an extensive collection of archaeology articles, modern LiDAR investigations, and groundbreaking research. The site also includes insights and excerpts from the acclaimed Robert John Langdon Trilogy, a series of books that explore Britain during the Prehistoric period. Titles in the trilogy include The Stonehenge Enigma, Dawn of the Lost Civilisation, and The Post-Glacial Flooding Hypothesis, which offer compelling evidence of ancient landscapes shaped by post-glacial flooding.

To further explore these topics, Robert John Langdon has developed a dedicated YouTube channel featuring over 100 video documentaries and investigations that complement the trilogy. Notable discoveries and studies showcased on the channel include 13 Things that Don’t Make Sense in History and the revelation of Silbury Avenue – The Lost Stone Avenue, a rediscovered prehistoric feature at Avebury, Wiltshire.

In addition to his main works, Langdon has released a series of shorter, accessible publications, ideal for readers delving into specific topics. These include:

For active discussions and updates on the trilogy’s findings and recent LiDAR investigations, join our vibrant community on Facebook. Engage with like-minded enthusiasts by leaving a message or contributing to debates in our Facebook Group.

Whether through the books, the website, or interactive videos, we aim to provide a deeper understanding of Britain’s fascinating prehistoric past. We encourage you to explore these resources and uncover the mysteries of ancient landscapes through the lens of modern archaeology.

For more information, including chapter extracts and related publications, visit the Robert John Langdon Author Page. Dive into works such as The Stonehenge Enigma or Dawn of the Lost Civilisation, and explore cutting-edge theories that challenge traditional historical narratives.

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The Fury of the Past: Natural Disasters in Historical and Prehistoric Britain

Introduction

Over recent years, there’s been a growing tendency… to present images of climate in crisis.

Storms tearing through communities…
floods overwhelming towns…
weather described not just as severe… but as something almost theatrical in its intensity.

And alongside these images… comes a familiar language.

We hear about record-breaking rainfall…
unprecedented wind speeds…
and that now well-worn phrase… “since records began.”

It sounds authoritative.
It sounds definitive.

The Fury of the Past: Natural Disasters in Historical and Prehistoric Britain
The Fury of the Past: Natural Disasters in Historical and Prehistoric Britain

But it’s worth pausing… just for a moment… to ask a simple question:

What records… exactly… are we talking about?

Because in many cases… those “records” begin surprisingly recently.
Daily observational data, in its most widely used form, only really starts in the early twentieth century — around 1914.

So when we describe a modern year… like 2023… as extreme or unprecedented… we are often comparing it to just over a century of detailed measurement.

And that… is a very narrow window… in the context of climate.

Because the story doesn’t begin there.

We have the England and Wales Precipitation series… stretching back to 1766.
We have the Central England Temperature record… reaching all the way back to 1659.

These are not trivial datasets.
They are the result of generations of careful observation… often by dedicated amateur meteorologists… people who simply watched the skies… and wrote it down.

Together, they offer something far more valuable than a snapshot.

They offer perspective.

A long, continuous conversation between humanity… and the weather.

And yet… paradoxically… these longer records are often pushed aside.
Quietly ignored… or treated as secondary… in favour of modern datasets that fit more neatly into contemporary narratives.

Which raises an important point.

If we are serious about understanding climate…
about understanding flooding…
about understanding extremes…

Then we cannot afford to work from fragments of the record.

We need the full canvas.

The Fury of the Past: Natural Disasters in Historical and Prehistoric Britain
The Fury of the Past: Natural Disasters in Historical and Prehistoric Britain

Because without that depth… without that historical context…
we risk mistaking variability for anomaly…
and short-term patterns for long-term change.

Perhaps this is where a figure like Jacob Bronowski would urge caution.

Not to dismiss modern science… but to place it within the wider human story.

To recognise that knowledge is cumulative…
that understanding comes from continuity… not selectivity…

And that if we truly want to understand the forces shaping our world…
we must listen not just to the present…

…but to the long memory of the past.

Sky News Online:

“England and Wales have seen the wettest summer for 100 years, according to MeteoGroup. Rainfall for June, July and August was 362mm (14.25in), making it the wettest summer since 1912. The average summer rainfall across the UK is 226.9mm (8.9in).  MeteoGroup forecaster Nick Prebble said this summer is set to be the fourth wettest since records began in 1727. The record for the UK’s wettest summer is 1912, when 384.4mm (15.1in) of rain fell.” (The Fury of the Past: Natural Disasters in Historical and Prehistoric Britain)

(The Fury of the Past: Natural Disasters in Historical and Prehistoric Britain)
Somerset Flooding – (The Fury of the Past: Natural Disasters in Historical and Prehistoric Britain)

Let us delve into the fabric of the British summer, as narrated by the Met Office, revealing a tapestry less illuminated by the sun’s grace than in years past. A summer, they tell us, that may be recorded in the annals as one of the dullest, with a mere 399 hours of sunshine until the twilight of August, shadowed only by the year 1980’s modest 396 hours. This narrative unfolds in the aftermath of a Bank Holiday painted in the hues of unsettled weather, where rain and flood alerts draped many parts of the UK.

Joanna Robinson, a sage of weather from Sky News, recounts a tale of a season that began with the wettest June recorded, followed by a July that, too, was cradled in wetness. Yet, as the days of summer waned, the weather found a semblance of calm, only to be disturbed once again as August drew to a close. She speaks of the jet stream, that ethereal conveyor of weather, which, in its wanderings, steered storms across the British Isles that might have otherwise passed us by.

The summer of 2007 looms large in recent memory, its rainfall second only to records dating back to 1912, yet August of this summer hints at being the driest and sunniest. Such observations provoke exclamations of dismay and declarations of the grip of climate change on our world. Yet, a closer scrutiny, a peering into the depths of our climatic past, reveals a narrative less singular in its direction. The year 2007, while remarkable for its summer deluge, does not rank among the highest in annual rainfall, settling instead into the seventeenth position over the last century.

Our engagement with the elements, marked by the ebb and flow of rainfall, stretches back over centuries, with periods of intense precipitation, such as the decade spanning 1870 to 1880, punctuating our history. And between the notable years of 2007 and 2012, 2010 emerged as the eleventh-driest, a reminder of the natural oscillations that characterise our climate.

Grote Mandrenke

Turning our gaze to the winds and gales that sculpt our coastlines, history offers us a lens through which to view these forces in a broader context. The ‘Grote Mandrenke’, a tempest from the annals of the fourteenth century, wrought unparalleled devastation, claiming thousands of lives and altering landscapes and architecture. This event, among others, serves as a testament to the dynamic and often turbulent relationship between humanity and the environment.

In this reflection, inspired by the thoughtful considerations, we are invited to contemplate the narratives of weather and climate not as isolated phenomena but as part of a complex interplay of natural forces, historical events, and human experiences. Through this lens, we gain a deeper appreciation for the intricacies of our world and the myriad ways in which the past informs our understanding of the present and the future.

(Extreme weather and Ancient Subterranean shelters)
Grote Mandrenke 1362 – Extreme weather


In the reflective prose, let us explore the further reaches of our historical and environmental saga, where the dance between humanity and nature continues its timeless rhythm. As the great storm of 1362 stretched its wrath into the North Sea, it conspired with the tides to birth a tempestuous offspring—the storm surge. This phenomenon, a marauder of the coasts, reshaped the contours of the European shore, leaving ports from England to Denmark in ruins, and forever altering the dialogue between land and sea.

Yet, this cataclysm, while monumental, is not an isolated whisper in the annals of our planet’s climatic history. It echoes a more ancient, more profound narrative that commenced with the first settlers in the Mesolithic period. These early denizens of the land faced the capricious moods of a world freshly emerged from the clutches of the last Ice Age—a time when the land itself was a protagonist in a story of transformation and survival.

The landscape, a silent historian, bears the scars and tales of these epochal changes. The retreat of the ice sheets some ten thousand years ago unleashed waters that dwarf our contemporary rainfall measurements, inundating the land with a deluge that would reshape its very skeleton. The annual rainfall pales in comparison to the volumes discharged during this great thaw, when millions of millimetres of water sculpted the British Isles into a new form, carving out riverbeds and creating the floodplains we know today.

The Fury of the Past: Natural Disasters in Historical and Prehistoric Britain
The Fury of the Past: Natural Disasters in Historical and Prehistoric Britain

British Geological Society

These ancient watercourses, now hidden beneath layers of sediment and time, are revealed to us through the meticulous cartography of the British Geological Society (BGS). Their maps unfurl a tapestry of geological memory, revealing the remnants of vast paleo-river systems that once cradled the waters of the past. The floodplains, marked by their unique sedimentary compositions, are not merely areas prone to contemporary flooding but are the fingerprints of ancient rivers that once dominated the landscape.

Our Mesolithic ancestors, attuned to the rhythm of this waterlogged world, chose the margins of these floodplains for their sacred sites and communal gatherings. Stonehenge, that enigmatic structure, stands as a testament to its profound connection with the land and its waterways. They navigated the flooded realms, moving from isle to isle, their lives intertwined with the ebb and flow of the waters.

The Fury of the Past: Natural Disasters in Historical and Prehistoric Britain
The Fury of the Past: Natural Disasters in Historical and Prehistoric Britain

The evidence of these ancient flood plains and their impact on human settlement and activity is etched into the very bedrock of our island. A study of the BGS maps reveals a subterranean network of what were once mighty rivers and channels, especially in areas of chalk bedrock like Stonehenge. These geological whispers invite us to consider how our landscape has been shaped by water’s forceful hand, guiding our ancestors and shaping the course of our collective history.

In this contemplation, inspired by Bronowski’s reverence for the intertwining of science, history, and human endeavour, we are reminded of the enduring legacy of our planet’s natural forces. They beckon us to view our present and future through the lens of the deep past, understanding that the stories of storm surges, flooding, and climate are chapters in a much longer narrative of Earth and humanity.

(Extreme weather and Ancient Subterranean shelters)
Paleochannels – (The Fury of the Past: Natural Disasters in Historical and Prehistoric Britain)

Embarking on a journey of inquiry and reflection, we delve into the enigma of Britain’s dry river valleys. These landscapes, now silent and devoid of flowing waters, serve as a testament to the dynamic and ever-changing canvas of our planet’s geological and climatic history. Known to archaeologists, geologists, and the curious layperson alike as ‘Dry River Valleys,’ these formations beckon us to ponder the forces that sculpted them and the epochs they have witnessed.

Conventional wisdom held that the distinctive contours of these valleys, nestled within the chalk hills, were the handiwork of the Periglacial Phase of the Quaternary Period—a vast expanse of time that began around 2.6 million years ago. Yet the precise moment of their birth remains shrouded in the mists of prehistory, with no concrete evidence to mark their genesis.

Geology, a discipline ever ripe with evolving theories and reinterpretations, suggests these dry valleys were carved by the relentless flow of water, eroding topsoil and smoothing the underlying chalk during the thaw that followed an ice age. Yet the Quaternary Period is marked by a succession of ice ages, each leaving an indelible mark on the land. This presents a quandary for those who seek to understand not just the creation of these valleys, but the epochs in which they thrummed with the lifeblood of flowing rivers.

Post-Glacial Flooding

For archaeologists and geologists, the puzzle lies in discerning which ice age’s thaw sculpted these valleys into the landscape. The challenge is not merely academic; it bears significant implications for understanding the human story intertwined with these natural features. The timing of water coursing through these valleys could illuminate periods of human activity, migration, and settlement, shedding light on the ancient peoples who once lived alongside these now-vanished rivers.

Geological maps and studies suggest the existence of great rivers that once traversed the British Isles, sculpted by the monumental release of water at the end of the ice ages. The last great thaw, occurring some 17,000 years ago as the ice sheets, towering over two miles high in places, receded, would have unleashed floods of epic proportions. This deluge, the most significant in recent geological history, would have transformed the landscape, including the Valleys of the South Downs, far from the ice sheet’s edge.

The intrigue of these dry river valleys lies not solely in their geological formation but in the stories they hold of a world dramatically different from our own. To understand when these valleys last echoed with the sound of flowing water is to peel back layers of time, revealing insights into the climatic shifts that have shaped the earth and influenced the course of human civilisation.

(Extreme weather and Ancient Subterranean shelters)
Dry River Valley – Extreme Weather

We are witnessing a paradigm shift in our understanding of Britain’s dry river valleys. Modern geological consensus now acknowledges that these features were carved not by the slow, grinding advance of ice but by the dynamic, erosive power of water. This revelation comes from observing the profound examples of soil erosion and the creation of valleys, where millions of gallons of water, moving with relentless force, stripped away layers of earth down to the bedrock.

This narrative finds vivid illustration in the South Downs, where the cliffs and valleys bear silent testimony to ancient, post-glacial rivers. The region, much like the area surrounding Stonehenge, rests upon chalk sedimentary bedrock, shaped by the flows of yesteryear. The presence of these ancient watercourses is betrayed by the layers of sand, silt, and clay that comprise the subsoil, visible in the dales (valleys) of the South Downs and, most strikingly, on the faces of the chalky white cliffs. These cliffs, sculpted by the sea, offer a cross-sectional view into the past, revealing the sedimentary layers left by prehistoric rivers.

Contrary to earlier interpretations that attributed the formation of these geological features to windblown loess or wash from valley walls, the evidence suggests a different story. The discovery of sandy sediments, embedded within the chalk and lying in close proximity to the current topsoil, points to a more dramatic origin. These remnants of ancient rivers, dating back approximately 15,000 years to the aftermath of the last great melt, challenge the prevailing theories.

The puzzle for geologists and archaeologists alike lies in the thin veil of topsoil that covers these ancient sediments. If these valleys were as ancient as previously believed, the question arises: where has the expected accumulation of topsoil gone? Furthermore, if topsoil erosion occurs at the rate some experts claim, how do we account for the presence of 18 inches of topsoil atop the chalk in the present day?

These questions invite a reevaluation of our understanding of the landscape’s history, suggesting that erosion and sedimentation may not conform to the simplistic models previously proposed. The narrative of the South Downs and similar landscapes across Britain is not merely a tale of geological change but a reflection of the complex interplay between the earth’s natural forces and the passage of time.

(Extreme weather and Ancient Subterranean shelters)
Paleochannel on South Downs cliff – (The Fury of the Past: Natural Disasters in Historical and Prehistoric Britain)

We find ourselves at a crossroads of questions concerning the sedimentary timelines and the environmental narratives of our ancient landscapes. The enigma of the seemingly scant topsoil overlaying the remnants of prehistoric river beds in places like the South Downs raises profound questions about our understanding of climatic events and geological processes. Are we on the brink of uncovering evidence of a massive climatic upheaval yet to come, one that could dramatically alter the topsoil? Or, perhaps more intriguingly, have we misdated the dry river valleys and the prehistoric river beds that cradle the foundations of our ancient history?

The puzzle deepens as we consider the architectural legacies of our ancestors, such as Woodhenge and the enigmatic site known as Durrington Walls. These ancient monuments, constructed with a profound understanding of their environmental context, may hold clues to the climatic and geological conditions of their time. The location and design of these structures, aligned with natural features and possibly informed by an awareness of floodplains and waterways, suggest a sophisticated interaction with the landscape that transcends mere habitation and ventures into the realm of reverence and ritual.

The construction of Woodhenge, positioned near the curious formation of Durrington Walls, invites speculation about the relationship between human society and the natural world in prehistoric times. Were these monuments erected in response to the environmental challenges faced by their builders, such as flooding or the need to navigate and control water resources? Or did they serve as markers of significant geological features, such as dry river valleys, embedding coded knowledge of the landscape’s history and cyclical transformations in their construction?

These questions compel us to reexamine our interpretations of the archaeological record, challenging us to integrate geological evidence with the cultural and spiritual dimensions of ancient constructions. The apparent discrepancy in the sedimentary record, marked by the proximity of ancient river sediments to the present-day topsoil, may not only point to gaps in our geological dating but also to a more complex understanding of how our ancestors interacted with and adapted to their environment.

Durrington Walls

When you look at Durrington Walls, the first thing that strikes you is that it seems incomplete; it appears as a half-circle in aerial photographs, and from the ground, you get a sense that it is only half-finished. However, most illustrations include the easterly section because magnetometer surveys show more ditches beneath the surface, although you might question their purpose, as they are not apparent.  The easterly side of the site was clearly built much later than the original Westside. The East bank is smaller and does not match the initial ditch-and-moat specifications, which were roughly 5.5 m deep, 7 m wide at the bottom, and 18 m wide at the top. (The Fury of the Past: Natural Disasters in Historical and Prehistoric Britain)

(Extreme weather and Ancient Subterranean shelters)
Durrington Walls showing harbour in the dip – (The Fury of the Past: Natural Disasters in Historical and Prehistoric Britain)

The bank was 30 m wide in some areas. The bank and ditch indicated by the magnetometer surveys are less than half that depth; the bank is only about a third the size of the one on the Northern side.  The current theory and plan for Durrington Walls do not stand up to investigation, for clearly the Eastern side of the camp was added later, when the prehistoric groundwater had begun to recede.

So what was its original use?

 To answer that question, you must look at the site’s terrain, position and layout. The first thing that hits you is that the site is not flat! In fact, it’s a huge bowl.

The Fury of the Past: Natural Disasters in Historical and Prehistoric Britain
Woodhenge & Durrington Walls Harbour- (The Fury of the Past: Natural Disasters in Historical and Prehistoric Britain)

The suggestion that our forebears might have chosen to establish settlements in locations that, to the modern eye, appear prone to flooding, invites a deeper investigation into the logic and environmental understanding of these ancient communities.

The case of Durrington Walls, traditionally interpreted as a settlement due to the discovery of roundhouse foundations, challenges contemporary notions of ideal habitation sites. The prevailing wisdom that discourages camping on a slope due to the risk of water runoff highlights a modern bias towards flat, stable ground. Yet the archaeological insistence on Durrington Walls as a settlement, despite its topographical peculiarities, might overlook the site’s strategic significance in relation to the environmental conditions of the time.

Harbour

If we entertain the notion of significantly higher prehistoric groundwater levels, Durrington Walls transforms from a seemingly ill-chosen settlement into a potential natural harbour. The site’s configuration, with shallow sides ideal for mooring boats and a central ravine providing depth for watercraft, coupled with the remains of substantial external walls, suggests a sophisticated understanding of landscape and water management by its builders. Such a harbour, protected by formidable chalk walls, would have been a marvel of prehistoric engineering, offering shelter from the elements and facilitating trade or travel.

Woodhenge’s dual entrances further support the hypothesis of a water-centric landscape. One entrance aligns with Durrington Walls, suggesting a terrestrial connection, while the other, leading towards what would have been the ancient shoreline, implies a relationship with waterways. The presence of groundwater at Woodhenge, inferred from magnetometer surveys and the peculiarities of the site’s layout, underscores the adaptability and ingenuity of prehistoric peoples in harnessing their environment.

The evolution of the landscape, mirrored in the receding shoreline over millennia and the adaptation of human structures to these changes, reveals a dynamic interaction between our ancestors and their surroundings. The modern road, tracing the ancient shoreline’s path, serves as a tangible reminder of the deep history embedded in the land.

This reconsideration of Durrington Walls and Woodhenge as components of a prehistoric landscape intimately connected with water challenges us to think beyond conventional archaeological interpretations. It suggests that our ancestors were far from foolish in their choice of settlement locations. Instead, they possessed a profound understanding of their environment, selecting sites based on a complex array of factors, including access to water, natural protection, and the strategic advantages these locations offered.

(Extreme weather and Ancient Subterranean shelters)
Woodhenge and Durrington Walls Harbour – (The Fury of the Past: Natural Disasters in Historical and Prehistoric Britain)

We should not be too surprised by this, as lakeshores and coastlines still have paths along with them today so that we can fully enjoy them. There is no reason to believe that prehistoric people did anything different 8,000 years ago, and such a path would also have a practical purpose, as the shorelines were used as a mooring site.  If we are correct about the road and the mooring points, is it possible to find post holes here underground?

Unbelievably, the answer is yes!

Wainwright, in his excavations of Durrington Walls, discovered lots of them. Without a shoreline, the post holes would look random and not make much sense. However, as soon as the groundwater flooding is added, their function becomes apparent: they held mooring posts, as that is the natural landing area for boats coming to and from Stonehenge, Avebury or Old Sarum.  But are there other sites that have walls to protect them from the weather?

Avebury

Navigating through the mysteries of Avebury and its ancient landscapes, we find ourselves in the midst of a dialogue that blends the profound insights of archaeology with the nuanced understanding of geology, much in the spirit of Jacob Bronowski’s interdisciplinary exploration. Avebury, nestled within the chalkland of the Upper Kennet Valley, presents a fascinating case study of human interaction with a dynamically changing environment.

The positioning of Avebury on a low chalk ridge, elevated above the surrounding landscape, and its proximity to the Marlborough Downs, speak to the strategic selection of this site by our ancestors. The discovery of flint artefacts dating to the late Mesolithic period suggests a long history of human presence, perhaps drawn by the natural resources and the strategic vantage point this location offers.

The Fury of the Past: Natural Disasters in Historical and Prehistoric Britain
The Fury of the Past: Natural Disasters in Historical and Prehistoric Britain

The post-glacial flooding that reshaped the landscape around Avebury, transforming it into an almost island-like monument surrounded by waterways, highlights the profound impact of natural forces on human settlements. The effort to maintain Avebury’s island status through the construction of ditches and large banks reflects a determined human response to a changing environment, aimed at preserving the site’s symbolic or functional significance.

The estimated 1.5 million working hours required to construct the Avebury monument, involving 200 people working full-time for three to four years, underscores the monumental effort invested in this endeavour. This contrasts sharply with the even more staggering effort estimated for the construction of Silbury Hill, suggesting a remarkable dedication of resources and labour to these ancient projects. The discrepancy in the estimated working hours needed to move the respective volumes of chalk at Avebury and Silbury Hill raises intriguing questions about the methods, technologies, and organisational structures of prehistoric societies.

These ancient monuments, Avebury and Silbury Hill, stand as testaments to the ingenuity and resilience of our ancestors, who, faced with a world marked by extreme weather events and changing landscapes, sought to leave their mark through these colossal earthworks. The monumental scale of these projects, achieved without the modern machinery or technological aids available today, invites us to reconsider the capabilities of ancient societies and their profound connection to the landscapes they inhabited.

(Extreme weather and Ancient Subterranean shelters)
Avebury Harbour- (The Fury of the Past: Natural Disasters in Historical and Prehistoric Britain)

This is just another fact that does not make sense! –

There is just no consistency in archaeological findings; it’s all subjective, and quite frankly, wrong!

The suggestion that monuments like Avebury evolved gradually over centuries, with their ditches deepening from a modest one meter to the monumental eleven meters over 5,000 years, presents a compelling narrative of continuous human engagement with these sites. This slow but persistent expansion and deepening of the ditches could indeed offer a plausible explanation for the archaeological conundrum of the tools used in their construction.

The incremental growth of these monuments suggests a process deeply intertwined with the rhythms of prehistoric life, in which the maintenance and expansion of the ditches became part of the community’s ongoing relationship with their environment and heritage. The gradual excavation of the ditches, possibly for ritual cleansing, defence, or to expand the monument’s scope, would have allowed the use of simple tools available at the time. This contrasts with the daunting task of constructing such massive earthworks within a single generation, which would have required resources and coordination levels that seem less plausible without sophisticated tools and technologies.

The Fury of the Past: Natural Disasters in Historical and Prehistoric Britain
The Fury of the Past: Natural Disasters in Historical and Prehistoric Britain

Giant Ditches

The analysis of the ‘chalk mountain’ formed from excavated material offers fascinating insights into the monument’s purpose and symbolism. The calculation that the bank could originally have stood at least 15 meters high, with the potential to reach 20 meters when accounting for chalk compression and air gaps, underscores the monumental effort invested in these structures. This towering presence would have dominated the landscape, serving as a potent symbol of the community’s identity, beliefs, and capabilities.

The bank’s considerable height, derived from the volume of chalk moved from the ditches, also speaks to the technical understanding and engineering skills of the people who built these monuments. The manipulation of the landscape on such a scale, with the tools and knowledge available at the time, demonstrates a sophisticated grasp of materials and a deep connection to the land itself.

This perspective, which sees the monuments growing organically over time, enriches our understanding of the relationship between prehistoric societies and their monumental creations. It suggests that these structures were not static symbols imposed on the landscape but dynamic, evolving entities that reflected the changing needs, beliefs, and aspirations of their builders.

(Extreme weather and Ancient Subterranean shelters)
Avebury Harbour Walls- (The Fury of the Past: Natural Disasters in Historical and Prehistoric Britain)


The endeavour to construct a 15-meter-high wall, especially within the context of ancient monumental architecture, invites a nuanced exploration that bridges the gap between archaeological theory and the lived realities of prehistoric communities. The suggestion that such walls were defensive structures, yet paradoxically positioned to ostensibly favour attackers, propels us into a deeper inquiry into the motivations and environmental challenges faced by these ancient builders.

The comparison with Durrington, where a high wall ostensibly serves a protective function for boats against wind and storms, suggests a pragmatic approach to construction that transcends mere defensive purposes. This insight challenges the notion of monumental walls as solely ceremonial or defensive and invites consideration of their role in mitigating the era’s environmental conditions.

The archaeological pivot to ‘ceremonial’ explanations in the face of such paradoxes, while often serving as a placeholder for the unknown, may indeed overlook the practical interactions between these ancient communities and their volatile climates. The humorously termed “God of pointless constructions and practices” belies a critical gap in our understanding of the symbiotic relationship between human societies and their environments.

Underground Bunkers

The suggestion that past weather was more severe and that the construction of shelters and walls was a response to these conditions is compelling. This perspective is supported by the presence of souterrains, or underground structures, which served as refuges from harsh weather. These structures, varying in design and function across regions, exemplify the adaptability and ingenuity of ancient communities in the face of climatic adversity.

The regional variation in the design of souterrains, from fogous in Cornwall that served as larders to other forms of underground shelter, underscores the diversity of responses to environmental challenges. This diversity not only highlights the practical considerations that drove the construction of monumental and subterranean structures but also reflects the rich tapestry of cultural practices that evolved in tandem with changing landscapes and climates.

(Extreme weather and Ancient Subterranean shelters)
Souterrains- (The Fury of the Past: Natural Disasters in Historical and Prehistoric Britain)


The souterrains of Ireland, often colloquially termed ‘caves’, constitute a fascinating part of the archaeological and cultural landscape, rich in historical significance and imbued with the mysteries of the past. The scholarly works of individuals such as A.T. Lucas and the comprehensive study by Clinton in 2001 have provided invaluable insights into these subterranean structures, offering a window into their distribution, associated settlements, functions, and the chronology of their use.

Originating from the French term for “underground passageway,” souterrains were integral to the communities that constructed them, serving purposes that extended beyond the mere architectural or ceremonial. These underground galleries, often associated with settlements and ringforts, reflect a blend of ingenuity and necessity, designed to withstand the trials of their times.

Constructed by excavating earth and lining the resulting spaces with stone slabs or wood, souterrains were reburied to integrate seamlessly with the landscape. In instances where they were carved directly into rock, such elaborate preparations were unnecessary. Their functions, far removed from burial or ritualistic uses, leaned towards the practical, serving primarily as food stores or refuges during periods of conflict. The presence of souterrains within or adjacent to ringforts, and their dating to periods contemporary with these structures, suggests a synchronisation of defensive strategies and domestic planning.

The Fury of the Past: Natural Disasters in Historical and Prehistoric Britain
The Fury of the Past: Natural Disasters in Historical and Prehistoric Britain

The utilisation of ogham stones as structural elements within souterrains, and the repurposing of ancient script-bearing stones as roofing lintels or doorposts, underscores a fascinating intersection of cultural heritage and architectural necessity. Such practices highlight the adaptive reuse of materials and the deep-rooted connection between the physical and the symbolic in Irish heritage. The ‘cave of the cats’ at Rathcrogan stands as a prominent example, where the widened natural limestone fissure incorporates ogham stones, weaving together the threads of history, architecture, and mythology.

The distribution of souterrains in Ireland, particularly concentrated in certain counties, speaks to the geographical and environmental factors that influenced their construction. These underground structures, with their often obvious entrances, challenge our modern perceptions of secrecy and security, suggesting that their protective function was balanced with the practical needs of accessibility and use.

The first thing that strikes you as strange is the fact that these landscape features are categorised with different names in different locations:

Earth Houses – Modern use

Fogous – Cornwall

Pictish Houses – Found in Scotland (confusion arises here as some are only partially subterranean), unlike the Earth Houses in the same region.

Caves – Ireland

It’s quite literally an archaeological mess.  And the reason for this mess is that archaeologists don’t understand why they were built, so they gave them local names, unlike barrows, Stone circles and henges, which appear in the same areas but with a unified name to save confusion.  So, what can we find out about these structures that will help us understand why they were built?

Location, Location, Location

If we look at the minimal archaeological evidence, we do see a defined pattern of construction. For example, in Cornwall, we have found to date a collection of fifteen ‘fogous’.  According to archaeologists, this is a proposed use for fogous, a refuge during raiding trips, as they are close to the sea.  Sadly, if you look more closely, you see them in non-coastal areas and even in the middle of Dartmoor (Lade Hill Brook), where it’s called a Beehive Hut. 

The problem with looking for such objects in Devon is that hundreds of ‘caves’ are dotted around from the days of tin mining, and therefore it is almost impossible to distinguish a prehistoric mine opening from a fogou.

(Extreme weather and Ancient Subterranean shelters)
Fogou- (The Fury of the Past: Natural Disasters in Historical and Prehistoric Britain)


The exploration of subterranean structures across the British Isles and their potential functions opens a fascinating chapter in the study of prehistoric human adaptation to environmental challenges. The presence of fogous in Cornwall, notably the example at Carn Gwavel Farm on the Isle of Scilly, exemplifies the ingenuity of ancient communities in creating shelters that blend seamlessly with the landscape. These underground chambers, with their distinctive S-shaped curves and corbelled construction, suggest a level of architectural sophistication designed to address specific needs, whether for storage, habitation, or protection.

The orientation of fogous towards the SW-NE axis raises intriguing questions about their purpose. While some might speculate a religious or ceremonial significance, the practical considerations of climate and environmental exposure cannot be overlooked. The architectural similarities between fogous, chamber cairns, and passage chambers across different regions—each adapted to local conditions and available materials—underscore a widespread practice of constructing subterranean spaces for varied uses.

In regions like Ireland and Scotland, where these structures are more commonly found and referred to as ‘caves’ or ‘earth houses,’ their abundance points to a shared cultural practice of utilising underground spaces. The absence of similar structures in areas like Devon, Dorset, Somerset, and Wiltshire, juxtaposed with the concentration of other prehistoric monuments, suggests regional variations in responses to environmental and social pressures.

The situation in Wales, with its chambered cairns and passage chambers, adds another layer to this complex tapestry. The discovery of bodies within these structures has led to their classification as burial sites, yet the possibility that their original purpose evolved over time warrants consideration. The comparison to modern bunkers, which have found new uses beyond their original intent, illustrates the fluidity of human interactions with built environments.

Tornadoes

The hypothesis that these subterranean shelters were constructed in response to severe storm conditions, akin to practices in contemporary hurricane-prone areas of the USA, highlights a timeless human priority: the need for protection against the elements. This perspective offers a compelling narrative of prehistoric resilience and adaptability, suggesting that the construction of such shelters was a rational response to the challenges posed by a dynamic and sometimes hostile environment.

Understanding the motivations behind the construction of fogous and similar structures requires an interdisciplinary approach that considers archaeological evidence, environmental science, and historical climatology. The severity of prehistoric storms, as inferred from geological indicators of post-glacial flooding and climate change, provides a backdrop against which the necessity and ingenuity of these ancient shelters can be fully appreciated.

In contemplating these ancient structures, we are reminded of the enduring human capacity to innovate and adapt to the world’s ever-changing face. The legacy of fogous and their counterparts across the British Isles and beyond speaks to a deep-seated human instinct to seek shelter and safety in the face of nature’s fury, a testament to the ingenuity and resilience of our ancestors that continues to inspire and inform our understanding of human history.

But is there any other evidence that tornadoes hit Britain?

On 17th October 1091, London was hit by a vicious tornado.

The Fury of the Past: Natural Disasters in Historical and Prehistoric Britain
(The Fury of the Past: Natural Disasters in Historical and Prehistoric Britain)

The historical records describing the destruction wrought upon London, including the demolition of the wooden London Bridge, the devastation of 600 houses, and the severe damage to St. Mary-le-Bow church, underscore the formidable power of natural forces. The detail of rafters being driven six meters into the ground at St. Mary-le-Bow vividly illustrates the intensity of the event, likely a tornado, which also resulted in loss of life and widespread homelessness. This account provides a stark reminder of the vulnerability of even the most seemingly permanent human constructions to the whims of nature.

The enduring mystery surrounding Stonehenge, particularly the toppling of the gigantic Sarsen Trilithon Stones, invites a reconsideration of the forces capable of such feats. The traditional assumption that human intervention aimed at dismantling the monument falls short in light of the damage’s selective nature. The hypothesis of a tornado strike from the southwest offers a compelling alternative explanation, aligning with the directional pattern of damage observed at the site. The fact that only one pair of the trilithons was felled, while the rest of the monument remained relatively intact, suggests an event that combined immense power with precise directionality, characteristics emblematic of tornadoes.

The Fury of the Past: Natural Disasters in Historical and Prehistoric Britain
The Fury of the Past: Natural Disasters in Historical and Prehistoric Britain

Tornadoes, though not commonly associated with Britain’s climate in the popular imagination, are indeed part of the British weather landscape, albeit on a smaller scale than in regions like the United States. The potential for a tornado to have caused the specific pattern of destruction observed at Stonehenge challenges preconceived notions about the stability of such ancient structures and the range of natural disasters that have affected them throughout history.

The observation made by Stukeley in the 16th century and the subsequent ‘repairs’ at the turn of the last century underscore the ongoing interaction between human efforts to preserve or restore ancient monuments and the natural processes that continue to shape them. This dynamic interplay highlights the fragility of our cultural heritage and the importance of understanding the human and natural factors that have influenced these iconic structures over millennia.

In exploring the possibility that tornadoes could impact Stonehenge, we are reminded of the broader implications of climate and environmental forces for archaeological sites. Such considerations not only enrich our understanding of the past but also inform preservation strategies for safeguarding our cultural heritage against future natural events. The case of Stonehenge serves as a poignant example of the complex relationship between human history, natural phenomena, and the ongoing efforts to interpret and preserve the legacies of ancient civilisations in the face of nature’s capricious power.

The Fury of the Past: Natural Disasters in Historical and Prehistoric Britain
The Fury of the Past: Natural Disasters in Historical and Prehistoric Britain

PodCast

Author’s Biography

Robert John Langdon, a polymathic luminary, emerges as a writer, historian, and eminent specialist in LiDAR Landscape Archaeology.

His intellectual voyage has been interwoven with stints as an astute scrutineer in government and grand corporate bastions, a tapestry spanning British Telecommunications, Cable and Wireless, British Gas, and the esteemed University of London.

A decade hence, Robert’s transition into retirement unfurled a chapter of insatiable curiosity. This phase saw him immerse himself in Politics, Archaeology, Philosophy, and the enigmatic realm of Quantum Mechanics. His academic odyssey traversed the venerable corridors of knowledge hubs such as the Museum of London, University College London, Birkbeck College, The City Literature Institute, and Chichester University.

In the symphony of his life, Robert is a custodian of three progeny and a pair of cherished grandchildren. His sanctuary lies ensconced in the embrace of West Wales, where he inhabits an isolated cottage, its windows framing a vista of the boundless sea – a retreat from the scrutinising gaze of Her Majesty’s Revenue and Customs, an amiable clandestinity in the lap of nature.

Exploring Prehistoric Britain: A Journey Through Time

My blog delves into the fascinating mysteries of prehistoric Britain, challenging conventional narratives and offering fresh perspectives grounded in cutting-edge research, particularly LiDAR technology. I invite you to explore some key areas of my research. For example, the Wansdyke, often cited as a defensive structure, is re-examined in light of new evidence. I’ve presented my findings in my blog post Wansdyke: A British Frontier Wall – ‘Debunked’, and a Wansdyke LiDAR Flyover video further visualises my conclusions.

My work also often challenges established archaeological dogma. I argue that many sites, such as Hambledon Hill, commonly identified as Iron Age hillforts, are not what they seem. My posts Lidar Investigation Hambledon Hill – NOT an ‘Iron Age Fort’ and Unmasking the “Iron Age Hillfort” Myth explore these ideas in detail and offer an alternative view. Similarly, sites like Cissbury Ring and White Sheet Camp receive re-evaluations based on LiDAR analysis in my posts “Lidar Investigation Cissbury Ring through time” and “Lidar Investigation White Sheet Camp, revealing fascinating insights into their true purpose. I have also examined South Cadbury Castle, often linked to the mythical Camelot56.

My research also extends to ancient water management, including the role of canals and other linear earthworks. I have discussed the true origins of Car Dyke in multiple posts, including Car Dyke – ABC News Podcast and Lidar Investigation Car Dyke – North Section, which suggest a Mesolithic origin 2357. I also explore the misidentification of Roman aqueducts, as seen in my posts on the Great Chesters (Roman) Aqueduct. My research has also been greatly informed by my post-glacial flooding hypothesis, which has helped explain landscape transformations over time. I have discussed this hypothesis in several posts, including AI now supports my Post-Glacial Flooding Hypothesis and Exploring Britain’s Flooded Past: A Personal Journey

Finally, my blog also investigates prehistoric burial practices, as seen in Prehistoric Burial Practices of Britain and explores the mystery of Pillow Mounds, often mistaken for medieval rabbit warrens, but with a potential link to Bronze Age cremation in my posts: Pillow Mounds: A Bronze Age Legacy of Cremation? and The Mystery of Pillow Mounds: Are They Really Medieval Rabbit Warrens?. My research also includes astronomical insights into ancient sites, for example, in Rediscovering the Winter Solstice: The Original Winter Festival. I also review new information about the construction of Stonehenge in The Stonehenge Enigma.

Further Reading

For those interested in British Prehistory, visit www.prehistoric-britain.co.uk, a comprehensive resource featuring an extensive collection of archaeology articles, modern LiDAR investigations, and groundbreaking research. The site also includes insights and excerpts from the acclaimed Robert John Langdon Trilogy, a series of books that explore Britain during the Prehistoric period. Titles in the trilogy include The Stonehenge Enigma, Dawn of the Lost Civilisation, and The Post-Glacial Flooding Hypothesis, which offer compelling evidence of ancient landscapes shaped by post-glacial flooding.

To further explore these topics, Robert John Langdon has developed a dedicated YouTube channel featuring over 100 video documentaries and investigations that complement the trilogy. Notable discoveries and studies showcased on the channel include 13 Things that Don’t Make Sense in History and the revelation of Silbury Avenue – The Lost Stone Avenue, a rediscovered prehistoric feature at Avebury, Wiltshire.

In addition to his main works, Langdon has released a series of shorter, accessible publications, ideal for readers delving into specific topics. These include:

For active discussions and updates on the trilogy’s findings and recent LiDAR investigations, join our vibrant community on Facebook. Engage with like-minded enthusiasts by leaving a message or contributing to debates in our Facebook Group.

Whether through the books, the website, or interactive videos, we aim to provide a deeper understanding of Britain’s fascinating prehistoric past. We encourage you to explore these resources and uncover the mysteries of ancient landscapes through the lens of modern archaeology.

For more information, including chapter extracts and related publications, visit the Robert John Langdon Author Page. Dive into works such as The Stonehenge Enigma or Dawn of the Lost Civilisation, and explore cutting-edge theories that challenge traditional historical narratives.

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