The Lost Civilisation

Stonehenge Information

Stonehenge lighting strike

Robert John Langdon's trilogy  'Prehistoric Britain'  tells the true story of Britain and the Megalithic People who built the stone monuments  of Stonehenge, Avebury , Woodhenge (Durrington Walls).

How was Stonehenge Built?

By Robert John Langdon

In my second book of the trilogy 'Prehistoric Britain' to be published in October 2014 - 'Dawn of the Lost Civilisation', we look at the builders of Stonehenge and other 'Megalithic' sites and identify not only who these people were but more importantly where they came from and where they finally went?

To understand this 'Lost Civilisation' we also look at their skills and accomplishments, this includes their mathematical skills, which to date have been credited to the ancient Greeks.  By undertaking detailed closer analysis of monuments such as Stonehenge and the mathematics used to design such monuments, we can see that the constructions of these ten thousand-year-old sites were, in fact, based on sound trigonometrical theory. This numeral and spatial ability allowed them to navigate the four corners of the known world on their ships some ten thousand years before Columbus was born.

So how was Stonehenge planned and what can we see from the 'blue-print' what they knew about mathematics?

Stonehenge Diagram 1

The Stonehenge Blueprint

Firstly, Stonehenge was built in two very separate phases - current archaeologists are confused by the monument and dating of the structure so if you read or browse the internet you will see the 'traditionalist' quote three to five phases - these phases occurred AFTER the original monument was abandoned and thousands of years later, the ritualistic Celts occupied the monument and used it to worship the Sun and the summer Solstice as we see reenacted today during the summer solstice.

The First Phase took place at 8500 BCE when our ancestors built the original ditch made up of individual pits that were cut below the ancient groundwater table level to create a moat.  This moat was used with the Bluestones to bathe away infections from cuts and bites which, if left untreated, would have turned into gangrene and lethal fevers.  For Bluestones (when wet) releases chemicals, including the most potential natural antiseptic - rock salt.

Stonehenge Phase I drawing

Phase I with the Aubrey Holes that the Bluestones occupied

The most amazing aspect is the accuracy of the diameter of this moat, which is exactly 360 ft (109.73m). This length is no accident or coincidence it is of the reason that our angular and trigonometrical system revolves around 360!

We have 12 months a year and each have a lunar cycle that lasts (from New Moon to New moon ) 29.53 days.  We have shown in my last book 'The Stonehenge Enigma' that there was 56 Bluestones (2 x 28) and we can show that this was used as a very accurate (99.8%) moon and eclipse calendar, which could compensate for the 0.47 day difference between the moon cycle and a 30 day standard cycle.

It is therefore, no surprise that the most ancient of calendars are 12 x 30 = 360 days in length.

In history, we know that in the eighth century B.C.E., civilizations all over the world either discarded or modified their old 360-day calendars. The 360-day calendars had been in use for the greater part of the past millenniums. In many places, month lengths immediately after that change were not fixed, but were based instead upon observation of the sky.

Priest-astronomers were assigned the duty of declaring when a new month began – it was usually said to have started at the first sighting of a new moon. Month length at that time was simply the number of days that passed from one new lunar crescent to the next.

During those years in Rome, for example, a Pontifex (priest) observed the sky and announced a new moon and therefore the new month to the king. For centuries afterward Romans referred to the first day of each new month as Kalends or Kalends from their word calare (to announce solemnly, to call out). The word calendar derived from this custom.

The ancient Babylonians in 4000 BCE used a calendar with alternating 29- and 30-day months. This system required the addition of an extra month three times every eight years, and as a further adjustment, the king would periodically order the insertion of an additional extra month into the calendar.

However, what is interesting is that monument becomes a 'time capsule' from our ancestors to show us that they understood the mysteries of mathematics.  For when a circle that has a diameter of 360 ft has a moated circumference (the area around the edge of the circle) of 1130 ft in length.  So if we divide the length around the edge 1130 by the diameter 360, we get a very interesting number 3.14 - why is this absorbing, because it's what we know as PI or 3.14159!!

So did the builders of Stonehenge leave us a message in stone?

Greek Symbol PI

Greek symbol for PI

No one knows who invented Pi, yet the Ancient Greeks used this unusual symbol to denote pi - does it remind you of some monument we have been discussing? Why would the Greeks use such a symbol to denote the relationship of a circle to its diameter?  Surely, you would use something round not a classic trilithon symbol as found at Stonehenge - unless of course, that's were it was first used!

Stonehenge Trilithon

Trilithon used as a symbol for PI

Now 360 is also a very interesting number when it comes to circles as there are 360 degrees in a circle.  This is a particular number for if you were to pick a standard number to determine the degrees in a circle would you not go for something much easier and obvious to remember and use like 100?

Yet such a number is not good for trigonometry as a standard right angle triangle with a 360 degree circle has 90 - 60- 30 which allows simple mental maths to be calculated, such as calculating the sides of a triangle. For if it was based on a 100 degree circle the triangle angles would be 25 - 16.66 - 8.33 and the ability to calculate angles in your head or as an approximation (no electronic calculators in the Stone Age) would be far more difficult.

So the logic to link the degrees (or days) in a circle or solar year is obvious and is clearly reflected in man's first stone construction at Stonehenge.  However, Pi is only the start of this amazing construction, and the work accredited to Pythagoras in the past must now be questioned.

Voyager Drawing

Man has always left obscure 'time capsules' to the future (or Aliens) would you have been able to understand the geometric patterns of Voyager 1?

Four thousand years after the original Phase I Circle was constructed with the 58 Aubrey Holes that held Bluestones from the Preseli mountains in Wales. These stones were used for map the 360-day lunar calendar; they decided to erect an additional central monument.  In the first book of the trilogy, I proved that this monument was a temple to the dead of Doggerland, who died in an earthquake and subsequent tsunami in about 4200 BCE as recorded within Plato's dialogues, as a relief map of Doggerland (Slaughter Stone) and the Altar Stone (both made from micra sandstone) directly point to the ancient island, was also added at the time of construction.

Phase II of this construction included a new entrance causeway surrounded by moats known today as 'The Avenue', which led to the Neolithic shoreline which lay in the valley at Stonehenge Bottom.  This 600m 'road' was used to, not only, transport people to the monument, but moreover, to move the larger Sarsen stones (weighing up to 16 tonnes) by boat to the new monument at Stonehenge from the Marlborough Downs near Avebury a distance of between 20 - 25 miles.

However, rather than just building any kind of road to the shoreline, they decided to build it on an alignment that marks the longest day - the summer Solstice.  This day was very important for our ancestors as it correct the 360-day  lunar calendar with the solar calendar which is five days longer (365 days which we use today).  So in the centre of The Avenue they placed two stones (which are now missing) which are an exact alignment to the sunrise when this monument we first constructed

This alignment gives us the 'best' date for the construction of Stonehenge (as carbon dating is not possible for stones or stone holes) and confirms the date of Doggerlands demise in 4200BCE.

The complex details of this calculation is found in an earlier blog at:

So what we have now is our first 'chord' alignment that corresponds to the diameter of the Stonehenge ditch and the starting point of the circle which is its alignment to The Avenue.

Stonehenge Drawing 2

Start of Phase II construction with The Avenue alignment

From this start, they then sub-divided the circle up into six portions called a 'Hexagram' in mathematical terms for as we will show you in the book 'Dawn of the Lost Civilisation' the number six, and its multiples are very important to our ancestors.

Stonehenge Drawing 3

Phase 2-1 Hexagram added

The Hexagram was constructed by a series of strings of the same length (centre of the monument to the ditch) creating six 'equilateral' triangles, with all three sides the same length and therefore all three angles are of 60 degrees.

Equilateral Triangle

Properties of an Equilateral triangle

A crescent of stones was then formed for the monument (as illustrated in my previous book 'The Stonehenge Enigma') for the temple was dedicated to the dead and therefore, would have represented the crescent moon NOT the sun as some currently believe, for this adaptation occurred when later Druids altered the site by adding smaller stones and re-positioning the outer circle of bluestones.

Stonehenge Drawing 4

Then the five pairs of the trilithon stones in the inner horseshoe were added making sure the gaps between the stones followed the alignment corresponded to the hexagram design.  Lastly, the smaller outer circle trilithon which was aligned with the winter solstice sunset was added to complete the monument.

Stonehenge Drawing 5

The Altar Stone and the 'relief map' (Slaughter Stone) of Doggerland was added to complete the original monument to point to our ancestors 'lost land' which Plato called 'Atlantis'.

Stonehenge Drawing 6

Final Completed Structure

A complete explanation of the mathematics and symbolism within the Stonehenge Monument will be reviled in the second book of the trilogy 'Dawn of the Lost Civilisation' out in the autumn of 2014.

Stonehenge Drawing 7

Stonehenge 4200 BCE

Included in the book are the following explanations:

The Use of the Hexagram rather than any other shape?

Why imperial measurement has terms as 'feet or foot'?

How Pythagoras theorems were used 3500 years before he was born?

Why there are 12 'units' to a foot rather than 10?

The builder's ratio of a yard and what it is connected to?

The TRUE symbolism behind the Hexagram symbol we call the Star of David?

The religious link between the 'double triangle' that is in the centre of the monument?

How this mathematics was incorporated in the building of the 'Giza Pyramid'?

The true date of construction of the 'Great Pyramid'?

Other 'Megalithic Structures' of the world this civilisation built and influenced?

The 12 houses of the Astrological Calendar and hours on the clock?

Why there is 60 minutes to an hour, 60 seconds to a minute?

How the golden ratio tells us how Stonehenge was used after the phase II construction?

Harmonic Proportions are to sound as the Golden Ratio is to structure. 

and much, much more!!

Stonehenge Original Structure

Monument to the Dead - a crescent Moon

Are you a historic 'Mushroom'?

The word ‘Mushroom’ is rarely used in historical connections. However, most of our history books are full of errors and incorrect assumptions. If you have never heard of this term before it is (in the kindest terms) used to describe a person or persons keep in the dark and feed with …………….. manure!

So is our history a ‘cock-up’ or is it a ‘conspiracy’?

 “He who controls the present, controls the past. He who controls the past, controls the future.”  1984

George Orwell’s Nineteen Eighty-Four is a fictional account of the manipulation of the historical record for nationalist aims and manipulation of power. In the book, the creation of a "national story” by way of management of the historical record is at the heart of the debate about history as propaganda. To some degree, all nations are active in the promotion of such "state stories,” with ethnicity, nationalism, gender, power, heroic figures, class considerations and important national events and trends all clashing and competing within the narrative.

Such clever manipulation is almost impossible to identify if you have been indoctrinated into these ‘lies’, as you have no benchmark to judge them against. However, within those manipulations there will be facts that just ‘don’t make sense’! I have highlighted some of these facts in this book to illustrate that some of our history is quite simply nonsense - which could be due to ‘sleight of hand’ or what academia refers to as ‘peer review’, which is supposed to be a ‘firewall’ that keeps the nonsense out. However, in reality, all it has done over the years is kept the perpetuated nonsense in, giving it greater credibility than it deserves.

The classic example is the case of Galileo Galilei; (15 February 1564 – 8 January 1642), who was an Italian physicist, mathematician, astronomer, and philosopher who played a major role in the Scientific Revolution. His achievements include improvements to the telescope and consequent astronomical observations and support for Copernicanism (sun centered solar system) Galileo has been called the "father of modern observational astronomy”, the "father of modern physics”, the "father of science”, and "the Father of Modern Science”.

Three hundred and fifty years ago he was not father to anything; he was a 'heretic’ as he believed that the earth went around the sun, contrary to the bible. Galileo did not have the internet to promote his hypothesis and the church had ‘peer reviewed’ his ideas and found them false and contradictory the then academic belief (as they had total control over the education system) which centered the earth in this religious universe. Moreover, even after verification of his evidence and acceptance of his theories, it still took another fifty years for the ‚Inquisition’s ban’ on reprinting Galileo’s works to be lifted in 1718, when permission was granted to publish an edition of his works (excluding of course the condemned Dialogue’s) - the church finally lifted the partial ban in 1835, just 178 years ago and 193 years after his premature death. The credibility of ‘Peer Review’ was perfectly summed up by Richard Horton, editor of the British medical journal The Lancet, who said that:

"The mistake, of course, is to have thought that peer review was any more than a crude means of discovering the acceptability—not the validity—of a new finding. Editors and scientists alike insist on the pivotal importance of peer review. We portray peer review to the public as a quasi-sacred process that helps to make science our most objective truth teller. But we know that the system of peer review is biased, unjust, unaccountable, incomplete, easily fixed, often insulting, usually ignorant, occasionally foolish, and frequently wrong" - So much for peer review!

 But why are there so many mistakes in our history?

Homo sapiens are the only creatures capable of abstract thought and a ‘perception’ of time, creating a manipulation of thought concerning the past, the future and the present. An inquiry into the nature of history is based (in part) on a working understanding of time as a human experience. Therefore, history (as understood by Western thought) tends to follow an assumption of this linear progression: "this happened, and consequently, that happened; and so that happened because this happened first.” This is also known as the ‘cause and effect’ philosophy. Yet most ancient cultures held a mythical conception of history and time that was NOT linear. They believed that history was cyclical with alternating Dark and Golden Ages.

In Hesiod’s ‘The Works and Days’ he described the five ages of Man: the Gold Age, the Silver Age, the Bronze Age, the Heroic Age, and the Iron Age, each with their ebbs and flows of progression.  Other scholars suggest there were just four ages, corresponding to the four metals, and the Heroic age was a description of the Bronze Age. The clearest illustration of this ‘ebb and flow’ of historical invention can be seen with the Roman Villa. The use of a ‘hypocaust system’’ created a house that had ‘under floor’ heating, which is much more efficient than fires or radiators - yet if this house was found without reference archaeologists using ‘linear’ logic would conclude that it must have been built in the 21st century as all previous houses lacked the superior design.

So if our linear history is fundamentally flawed, where are these problems and are there a more rational explanation for them?

The Robert John Langdon Trilogy - Prehistoric Britain

12,000 years ago the last Ice Age finally melted, revealing the Britain we know today... 


Britain had been underneath two miles of ice and the surrounding seas had frozen solid. What was left was a huge icy mass of enormous weight, pushing down on this tiny island. This mass had compressed the earth so much that the land surface lay at least a half a mile below the sea bed as we know it today.
So what exactly happened after the great ice age melt?

This huge mass of watery ice that covered Britain raised the groundwater tables and left the land totally saturated. In fact, the volume of water was so great that it eventually created the English Channel and the North & Irish Seas. Very slowly, the land then started to rebound, so slowly in fact that even now, parts of Britain are still rising about one cm per year. This melting ice combined with the lowering of the land levels created not the single island called Britain we know today, but a series of smaller islands and waterways - totally unrecognisable to the landscape that is so familiar to us now. 

Moreover, the land became a sub-tropical forest as the warmer climate that first melted the polar ice caps encouraged the growth of abundant foliage. This would very probably have caused the islands to experience what we would consider today to be monsoon seasons. Which in turn then kept groundwater tables abnormally high for another 4,000 years? The foliage, groundwater and warm climate would have left the islands resembling more like the Amazonian rain forest, rather than the grassy hills of Britain we see today.

The only way our Mesolithic ancestors of Britain could have had to adjust to this new environment would have been to develop and use their boat and seamanship skills. Consequently, adapting to living and trade by these shorelines travelling via the vast waterways and lakes rather than through the forests, which would have been riddled with dangers such as brown bears, packs of wolfs and wild boar all roaming freely. Therefore, the shorelines became critical – our Mesolithic ancestors would have lived, worked and gathered by these ‘super-waterways’ and would have created social monuments and beacons on there beaches and peninsulas.

My hypothesis proposes that our greatest prehistoric monuments, such as Stonehenge, were built on these watery peninsulas. I also propose that the ditches surrounding henges were NOT dry ditches, as archaeologists currently believe, but were, in fact, constructed to be watery moats and canals, which turned these sites into very special islands. The most astonishing aspect of this hypothesis is that even today, thousands of years after the groundwater have subsided, we can re-visit these sites and identify the ports and channels of this bygone age and by using the landscape, we can date, more accurately than ever before, when the sites were initially constructed.

Another key component of my hypothesis is the discovery of navigational signposts (Long Barrows), built within the landscape, on the banks of these waterways. Traditionally, archaeologists have believed that these had religious or ceremonial use, whereas my evidence shows that they had a more functional engineering purpose, helping our ancestors to navigate around these islands. 

In fact, the book will show for the first time, that these signposts guided our ancestors when they transported enormous stones from the Preseli Mountains in Wales to the site at Stonehenge – by boat. These very stones were used to build the first phase this magnificent monument. Even more importantly, I can show the exact location of where these vast stones were unloaded from the boats and how this precious cargo and the mechanism used to lifted onto shore. 

This discovery of this landing site has led us to accurately date for the first time the original construction date of Stonehenge - 7500BC to 8000BC. This is 5,000 years earlier than current archaeological estimations, making Stonehenge probably the oldest Stone Monument in the world.

Prehistoric Britain consists of three books :

The Stonehenge Enigma

Prehistoric Britain

My Online Book and Map Store

Hardback Edition - Amazon Books

Softback Colour Edition - Amazon Books

Kindle Edition - Amazon Books


Preface to SECOND EDITION                                



THE HYPOTHESIS                                    


Chapter 1 -    A Land called DOGGER      (Doggerland)                      

Chapter 2 -    The BIG squeeze             (Isostatic Transformations)                   

Chapter 3 -    WATER, water everywhere...   (Post Glacial Flooding)                     

Chapter 4 -    Geological Maps                       (Prehistoric flood maps)         


Chapter 5 -    Dykes and other Earthworks                        

Chapter 6 -    Ditches best known as Moats                        

Chapter 7 -    The Prehistoric Health Spa                        

Chapter 8 -    Bluestones from far away                         

Chapter 9 -    The Lost North West Entrance                        

Chapter 10 -  The Avenue to a new Neolithic mooring place                

Chapter 11 -   Snails can tell us an old story                        

Chapter 12 -   Barrows – Long and Round                            


Chapter 13 -    The Stonehenge Landscape                        

Chapter 14 -    Old Sarum - the missing link                        

Chapter 15 -    Avebury - the oldest of them all                    

Chapter 16 -    Woodhenge & Durrington Walls - a structure by a harbour    


Chapter 17 -   The Megalithic Builders                           

Epilogue -       Monument to the LOST WORLD of ATLANTIS            

Appendices    Listing of Hypothesis proofs / Acknowledgments                                     

Dawn of the Lost Civilisation

Dawn of the Lost Civilisation



1. The Ascent of Man

        Out of Africa

        Generic Ancestry



2. Variation of the Species


        The Comparison


        New Migrants - New Land

        Simple way of Life

        Fundamental Flaw                                                                                                              

        Blood Types and DNA


3. Doggerland and the Ice Age                                                                  


        Animal Finds                                                                                                                       




        River Valleys                                                                                                                       

4. Atlantis                                                                                                     

        Ancient Tales                                                                                                                      

        Plan of Atlantis                                                                                                                    

        The Flood                                                                                                                             


        The Golden Age                                                                                                                 

        8000 year Old Map                                                                                                               

5. The Atlanteans




        The Hundreds                                                                                                                     



6. Advanced Technology

        Tool Development                                                                                                              

        Pre-Atlantean Dawn                                                                                                           


        Meare Heath Bow                                                                                                               

        Harpoons, Spears and Throwers                                                                                      

        The Wheel                                                                                                                           



        Bow and Pump Drills                                                                                                          

        Mechanical Advantage of Poles & Levers

7. Lifestyles                                                                                                   


        Farmers shrank Mankind                                                                                                   

        Magnetised Water                                                                                                              


        Long Houses                                                                                                                       

        Medical Procedures                                                                                                           




8. Trading                                                                                          

        European Ice sheet                                                                                                           

        Long Barrows                                                                                                                    

        Long Skulls                                                                                                                        

        Round Barrows                                                                                                                 

        Stone Circles                                                                                                                     

        Trading Towns                                                                                                                 

        Trading Materials

        Maths, Pythagoras and Measurement

                                                                                                                                                                                                                                                                                                                                                          9. Language and Art                                                                                    


        Oral Traditions                                                                                                                     



10. Ancient Mythology                                                                               

        Structuralist approach to Myth                                                                                     

        Geoffrey of Monmouth                                                                                                     

        Land of the Giants                                                                                                             

        Arthurian Legend                                                                                                              

        Flood Myths                                                                                                                          

11. Civilisation                                                                                             

        What is Civilisation?                                                                                                             

        Utopia, Eden and Shangri-la                                                                                              

        Stonehenge - Temple of the Dead                                                                                   

12. The Legacy                                                                                             

        Where did they go?                                                                                                           

        Greek and Egyptian Ancestry  

        Black Sea and Mesopotamia

        Central America and Inca

        India and Mongolia

        China and Japan

Appendixes  / Location Maps and Trade routes /                                                                       

Map of Doggerland Atlantis 

13 Ancient things that don't make sense in History

13 things


1.                  Ten thousand year old boats found on Britains Hillsides - 7,000 years before they          were invented.


2.                  Gigantic Prehistoric Canals - that are technically superior to even Victorian engineering.


3.                  Roman ports miles away from the coast – when sea levels are apparently rising.


4.                  Raised Beaches - that have never met the sea.


5.                  Giant skeletons - found by French archaeologists now dismissed by todays scientists.


6.                  Mythological Dragons - a non-existent animal that is shared by the world.


7.                  Sunken land of the North Sea - was the worlds oldest and greatest civilisation.


8.                  Troy was located in Turkey - although it took Jason ten years to get home to Greece.


9.                  Antler Picks that built ancient Monuments - yet there is no real evidence for this             myth.


10.                Recent Landscape Flooding & Storms - the secret our ancient ancestors knew about         Britain’s weather.


11.                Alexander the Great sailed into India - where no rivers exist today.


12.                Columbus was the first western man to reach America - yet bones and tools suggest      that Europeans came 10,000 years earlier.


13.                Quantum of Solstice – Pythagoras triangles show that Stonehenge holds mathematical s        ecrets before its time.


14.                Prologue


15.                Index and Acknowledgements


Langdon 'Mini' Series

These are 'bite sized' snippets from the main books I publish at a fraction of the cost of the whole book.

Megalithic Builders

The Megalithic Builders - Kindle Version

Stonehenge - TSE

Stonehenge (TSE) - Kindle Version

Post Glacial Flooding

Post Glacial Flooding - Kindle Edition

Atlantis - TSE

Atlantis (TSE) - Kindle Edition

Ten Thousand year old boats

Ten Thousand year old Boats - Kindle Edition


Gigantic Prehistoric Canals - Kindle Edition

Raised Beaches

Raised Beaches - Kindle Edition

Roman Ports

Roman Ports  - Kindle Edition


Robert John Langdon's Blog Site -

WHO built Stonehenge?  -

Prehistoric Britain  (Official  Web Site) -

WHY was Stonehenge built? -

Stonehenge - 'An inconvienient truth' -

Langdon's Prehistoric Map Series -

13 Ancient Things that don't make sense in History -

HOW Stonehenge was built? -

Britain's top 10 prehistoric sites -

Authors alternate blog site  -

Prehistoric Britain  (Official  web site) -

List of known web sites -

List of prehistoric scheduled monuments -

List of famous prehistoric world sites -

13 Ancient Things that don't make sense in History -

Stonehenge construction information -

Britain's top 10 prehistoric sites
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