Gary A. David is an American independent researcher and author dealing with archaeological ruins and rock art of the American Southwest. His focus is on the Hopi tribe of northern Arizona and its archaeo-astronomy. Although he has not written directly about Atlantis, he has contributed a number of interesting papers relating to subjects peripheral to our study here. Most of these are available on the Academia.edu website(a).
David has also written about the Orion Correlation Theory (OCT) of Bauval & Gilbert, which claims that the alignment of the three stars in Orion’s ‘belt’ is reflected in the layout of the three principal pyramids at Giza.
>David has expanded on the OCT of Bauval & Gilbert identifying important sites throughout Egypt that he believes constituted a more extensive reference with other heavenly bodies in what he calls the Egyptian Stellar Template(e).<
He goes further and claims that he “stumbled across an Orion Correlation that the ancestral Hopi Indians constructed in Arizona from about 1050–1300 AD. In this case, every major star in the constellation corresponds to a specific masonry village site. The terrestrial replication of the celestial pattern is simply uncanny.” (b)
David has published an informative paper(c) on the Maltese Cross and its variants as found around the world. He pointed out its use in the Americas by the ancient Olmecs and has laid great emphasis on its place in the inherited culture of the Hopi people.
David has also highlighted the use of the swastika in a more benign way by the Hopi of northern Arizona along with its innocent use in other cultures including the Minoans, as well as in 20th century USA(d).
Ian Lawton (1959- ) is an English researcher focused on ancient history and spiritual philosophy. He is probably best known as the co-author with Chris Ogilvie-Herald of Giza: The Truth , which offers a sober forensic review of all the many and widely varied theories relating to the ancient structures on the Giza Plateau.>In it, Lawton was highly critical of Robert Bauval’s Orion Correlation Theory (OCT) both in the book (chapter 9)(d) and in open correspondence between them.
Lawton’s second book, Genesis Unveiled , has been described as containing “remarkable new insights into the spirituality of the pre-flood human race”. Chapter 13 takes a somewhat generous view of Blavatsky and Theosophy(c).
He subsequently made changes(a) to the content and, in my opinion, opportunistically re-titled it as Atlantis: The Truth! In it Lawton has focused on prediluvian races, citing, with reservations, the work of Stephen Oppenheimer, Arysio dos Santos and Frank Joseph, which when added to Lawton’s research, he concludes that “it’s nevertheless interesting that all four of us have independently arrived at the same conclusion about the broad whereabouts of any forgotten race.” He argues that the location of such a race was in the general region of Sunda and Sahul Shelves.
The Nazca Lines of Peru have generated reams of commentary, from the nonsensical of von Däniken to the more profound of Maria Reiche>(1903-1998). Paul Kosok (1896-1959) was probably the first to carry out a professional study of the Nazca drawing in 1939. He was assisted a year later by Reiche who devoted the rest of her life to the study of Nazca. Kosok continued his research there until 1949.<
However, for sheer complexity I must direct you to the work of Czech-Canadian Jiri Mruzek. He has managed to link the Monkey geoglyph at Nazca with the layout of the Giza pyramids and a 14,000-year-old cave drawing at La Marche in France; all under the banner of ‘Seal of Atlantis’!!!(a)
In 2018, it was announced that another fifty Nazca style geoglyphs had been discovered in the adjacent province of Palpa(b). This number was subsequently increased to 142(c).
In February 2020, Frank Maglione Nicholson, Ken Phungrasamee & David Grimason, collectively known as The Nazca Group(d), published The Nazca Great Circle Map Hypothesis. Their claim is that “The lines and geoglyphs carved into the Nazca plateau represent a map of the Earth. The map is a Great Circle Map: a gnomonic projection with the center of the Earth as its cartographic view point. Each line on the Nazca Plateau represents a great circle of navigation centered at the center of the Earth and encircling the entire planet. The majority of the lines on the Nazca Plateau radiate from five loci of origin called radial centers.”
>Another 2020 article(e) by Laszlo Arvay concluded that “the Nazca Plateau could be the largest astronomical atlas in the world. If that is so, Paul Kosok was right after all and on a much greater scale as he ever thought possible.”<
Miquel Pérez-Sánchez is a Spanish architect with a fascination with the Giza pyramids(a). He is now advocating an idea that was in vogue in the 19th century, namely that information, astronomic, historic and prophetic, were encoded in the measurements of the structure of the Great Pyramid. However, he has gone further by adding to it ancient system of gematria, where every letter in an alphabet has a numerical value. Pérez-Sánchez has reversed this and translated numbers ‘identified’ in the Pyramid back into letters. One of these was equivalent to ‘Atlantis’! Whether this is in English, Greek or Hebrew is not clear.
Another of his startling claims is that the Great Pyramid was surmounted by a sphere, an idea that understandably drew highly critical comment(e)(f).
The byoweb.net website added that “After the discovery and publication of his first book, the author and his team are now looking for funding to the Atlantis project, including a campaign of underwater archeology in the Mediterranean Sea where they are sure to have located the mythical island described by Plato.”
Further comments and interesting images are to be seen on ancient-code.com, including Pérez-Sánchez’s statement(b) that “the Great Sphinx is not contemporary with the pyramids that surround it, but it is the product of a much earlier civilization that shaped and carved it around the eight millennium BC.”
Pérez-Sánchez has recorded all his ‘discoveries’ in his book, La Gran Pirámide, clave secreta del pasado and provides some supporting videos(c) of his lectures(d).
(d) See Archive 2779)
(f) https://magonia.com/tag/miquel-perez-sanchez/ (Spanish)
The Cygnus Constellation was the location of a supernova that inspired the story of Phaeton, as related to Solon by the priests at Sais, according to Michael A. Cahill in his two-volume Paradise Rediscovered [818/9].
Andrew Collins has also written on the place of the constellation Cygnus in prehistoric consciousness. Arising from this study, it appears that the position of the Cygnus stars correlates more accurately with the Giza pyramids than those of Orion, which was proposed some years ago by Robert Bauval. Collins continues with the Cygnus-Giza connection in a subsequent offering, Beneath the Pyramids. Derek Cunningham has echoed(a) some of Collins’ work suggesting that there existed in ancient times a World Map based on the Cygnus constellation!
Collins has also suggested that a suspected Black Hole in Cygnus Constellation is thought to be the source of cosmic rays that changed evolution and kick-started religion(d)!
Anthony Murphy and Richard Moore have also written(b) about the Cygnus Constellation and a possible link with Ireland’s Newgrange.>Paul Dunbavin also touched on the possible connection between swans in Irish mythology and astronomical events(e).<
Freddy Silva has endeavoured to link Cygnus with the Osirion in Abydos in a 2019 article(c) in which he dated the structure to 10,500 BC.
Geodesy is usually defined as the measurement and mapping of the Earth. As a science, it is traced back to Pythagoras (6th cent. BC), who was thought to be the first to propose the sphericity of the Earth. Later, Eratosthenes (276 BC– 195 BC) was one of the earliest to attempt to determine the dimensions of our Earth and succeeded with remarkable accuracy.
A controversial aspect of modern geodesy is the claim that many ancient sites were deliberately established at locations that had a specific geodetic relationship to each other and/or the dimensions of the Earth. For example(a) in ancient Egypt, from Giza to the Equator is 1/12th the circumference of the Earth, Amarna to the Equator is 1/13th, Luxor 1/14th and Philae 1/15th! Graham Hancock in his Heaven’s Mirror pointed to similar relationships around the globe suggesting a possible world grid. This idea of a world grid has a number of supporters but is often classified as a ‘fringe’ interest due to the attempt by some to link gridlines with UFOs and their use of the grid as a power source(w).
Possibly related features may be the ley lines identified by Alfred Watkins in Britain(c)(g), the Alesia alignments in France discovered by Xavier Guichard(b) and/or the Heilige Linien of Germany claimed by Wilhelm Teudt(aa).
Heinz Kaminski had claimed to have discovered a megalithic grid system that stretched from Stonehenge across Europe with an east-west and north-south orientation and referred to as the Stonehenge/Wormbach System(h).
Even more exotic is the ancient Raetiastone navigation system rediscovered by Gerhard Pirchl (1942-2013) and outlined in a book by  Thomas Walli(ae).
Ashley Cowie has published a paper(ac) related to Alesia and the work of Guichard and others, as well as his own investigations.
I should also point out that Marcel Mestdagh also identified a form of a road system, laid out in giant ovals with radials in France. At the centre of these ovals was the ancient city of Sens. Philip Coppens informs us [1275.184] that a further strange discovery by Mestdagh was that this ancient road network, centred on Sens, was mirrored by a similar network of roads in England centred on Nottingham!
‘The Way of Virachoca’ in the Andes which runs through Tiwanaku and is oriented exactly 45° west of true north and runs for over 1000 miles, has been studied by Maria Scholten d’Ebneth  in the 1970s and expanded on by a number of Spanish speaking commentators and is now the subject of an article by Dave Truman(x).
In 1973, three Russians, engineers Valery Makarov and Vyacheslav Morozov along with Nikolay Goncharov, an artist, published in Russian an article with the eye-catching title of Is the Earth a Giant Crystal? (y) This was probably the earliest presentation of an earth grid based on ancient historical sites. A brief history of the earth grid theories that emerged around this time is available online(z). There is now a Russian geodesy website with an English translation(ab).
David Hatcher Childress published his Anti-Gravity and the World Grid  in 1993, with the modest claim that he “proves that the earth is surrounded by an intricate electronic grid network offering free energy.” Obviously, Childress’ understanding of ‘proof’ is different to mine, as the only proof required is the production of some of this free energy, which he has not done.
Tom Brooks has entered the fray with a study of 1500 prehistoric sites and his conclusion that the inhabitants of ancient Britain had a designed a navigation system based on a grid of isosceles triangles(i). Brooks has gone a step further and speculatively claimed that the accuracy of this geometry-based system could only have been designed through “extraterrestrial intervention”(r). This concept is explored more fully in his latest book, Seeing Around Corners: Geometry in Stone Age Britain  and in a series of video clips(s). A more critical view of Brooks’ ideas is also available on the Internet(j).
Some years ago a former employee of a NASA sub-contractor, Maurice Chatelain claimed that within a 450-mile radius of the Aegean island of Delos that 13 mystical sites, when connected by straight lines formed a perfect Maltese Cross(u)!
Others such as Livio Stecchini(d) and Jim Alison(e) using geodetic calculations have identified São Tomé and Cape Verde respectively as the location of Atlantis. I must also include Hugo Kennes, a Belgian researcher with a passionate interest in global grids and sacred geometry(l). Kennes has also informed me of a new Facebook group(q) deal with all aspects of the subject, as well as another(v) that includes submerged cities and other features.
Anyone interested in pursuing a study of this subject might like to look over James Q. Jacobs’ archaeogeodesy website(f) as well as the BioGeometry website (m).
If you have pursued all the links so far, you can pamper yourself further with a paper(k) by William Becker and Beth Hagens(n). Another researcher in this field is Dan Shaw whose website(o) gives a good overview of the subject.
Jean-Pierre Lacroix added his weight to the debate with his 1998 paper entitled The Mapmakers from the Ice Age(t).
A global network of sacred sites was also put forward by Rand Flem-Ath & Colin Wilson in The Atlantis Blueprint . This book was intended as a sequel to When the Sky Fell , but generally wandered off into other areas after the first couple of chapters.
I am somewhat sceptical about certain aspects of geodesy, particularly some of the claims of a world grid. However, it does raise many questions that require further study and explanation. In this connection, I would recommend John Sase’s Curious Alignments  as a good starting point. He confirms the work of Guichard and also offers a range of his own discoveries in the Great Lakes region.
In February 2020, Frank Maglione Nicholson, Ken Phungrasamee & David Grimason, collectively known as The Nazca Group(ad), published The Nazca Great Circle Map Hypothesis. Their claim is that “The lines and geoglyphs carved into the Nazca plateau represent a map of the Earth. The map is a Great Circle Map: a gnomonic projection with the center of the Earth as its cartographic view point. Each line on the Nazca Plateau represents a great circle of navigation centered at the center of the Earth and encircling the entire planet. The majority of the lines on the Nazca Plateau radiate from five loci of origin called radial centers.” I found this rather esoteric proposition difficult to absorb.
>Arturo Villamarin has published many books  and papers(af)(ag) in which the geometry and astronomy of archaeological monuments; Göbekli Tepe, Stonehenge, Teotihuacán and Mohenjo Daro, among others, are discussed.<
(d) http://www.metrum.org/mapping/atlantis.htm (link broken Dec. 2020)
(r) https://www.prehistoric-geometry.co.uk/ [See (i)]
Gernot L. Geise (1945- ) & Reinhard Prahl (1967- ) Geise has written on a number of mysteries ancient and modern(b), the Pyramids, Revised Chronologies and three books on the alleged moon landing hoax(c).
As a guest author he offered a controversial paper on the Atlantisforschung.de website with the self-explanatory title of ‘The Giza pyramids were not built by ancient Egyptians’(d).
He has contributed regularly to the German EFODON magazine, of which he is a founding member.
Prahl has written on possible connections between the Guanches and the ancient Egyptians(a) and has collaborated with Geise to produce Auf der Suche nach der Mutterkultur (In Search of the Mother Culture)  in which they support the idea of Atlantis in the Antarctic.
(b) https://www.glgeise.de/ (German)
(d) https://qk2c5gnj7bksvanmqawmomjyna-adv7ofecxzh2qqi-atlantisforschung-de.translate.goog/index.php?title=Die_Pyramiden_von_Gizeh_wurden_nicht_von_Altägyptern_erbaut (Link Broken)
The Atlantis Blueprint by Rand Flem-Ath and Colin Wilson, is a follow-up to the highly controversial, When the Sky Fell by Rand Flem-Ath and his wife Rose. The focus of this book is on the claimed existence of a worldwide network that incorporates such famous sites as Giza, Machu Picchu, Easter Island etc., etc. The authors claim that these monuments were arranged in a global geometric pattern by an advanced ancient civilisation that included Plato’s Atlantis. This breathtaking idea is not one that I can subscribe to, as it seeks to tie up too many of the mysterious loose ends of ancient history at one fell swoop.
The Sphinx (at Giza) is considered by many to be considerably older than the usually accepted 3rd millennium BC. Its construction has been generally attributed to the Fourth Dynasty ruler Khafre, circa 2500 BC, whose head is believed to be currently represented on the Sphinx.
The controversial French scholar Rene Schwaller de Lubicz investigated several of Egypt’s ancient monuments. He was probably the first to remark on the apparent water erosion, on the Sphinx, as evidence of an earlier date for its construction than was previously accepted. He first voiced his views in 1949 and expanded his theories in 1957 . His work has now been translated into English(a).
Jason Colavito has added that “Schwaller de Lubicz got it from Gaston Maspero, who adopted it from Auguste Mariette, who came up with it because he mistook a Ptolemaic stela for an Old Kingdom one and therefore mistook a myth on the Inventory Stela(t) for a historical account.”(s)
However, in an extensive 2018 paper by Manu Seyfzadeh and Robert Schoch they argue for the historical value of the Stele noting in the paper’s abstract that; “The Inventory Stele tells a story about Khufu and the Great Sphinx which contradicts the current mainstream narrative of when the Sphinx was carved. The story’s historical relevance has long been challenged based on its mention of names and certain details which are believed to be anachronistic to the time of Khufu. Here, we address the elements commonly cited by the critics one by one and find that they are largely based on misconceptions in part due to errors and oversights contained in the two commonly referenced translations and based on a missing context which relates to the economics and symbolism of supplying provisions to the royal house.”(z)
A recent article(h) on the Giza for Humanity website reveals the work of Shérif El Morsi, an Egyptian researcher, who has documented evidence of ‘relatively recent’ incursion by seawater onto the Giza Plateau.
Michael Baigent has pointed out[141.167] that Dr Zahi Hawass in 1992 ‘reported that analysis of the rear leg of the Sphinx proved the earliest level of masonry around the body dated instead from the Old Kingdom period, that is from about 2700 BC to 2160 BC. The pyramids were constructed in the middle part of this period…….. For if Khafre had built the Sphinx along with his pyramid around 2500 BC, and if repairs to its heavily eroded body were made before 2160 BC, then this severe erosion covered up by the facing stones must have occurred in only 340 years – perhaps less: an extremely unlikely event. In practical terms, given the extent and depth of the erosion, it seems impossible.’
John Anthony West was inspired by the writings of de Lubicz and enticed the American geologist Robert Schoch to inspect the Sphinx and give his professional assessment of the age of the monument. Schoch concluded was that the Sphinx had suffered extensive water erosion and should be dated no later than 7000 to 5000 BC. On a second trip to the Sphinx Schoch and West brought Thomas Dobecki, a geophysicist, to carry out additional tests. The results reinforced Schoch’s initial conclusions.
In 1996 Graham Hancock and Robert Bauval published The Message of the Sphinx  in which they endorse Schoch’s water erosion theory. but considered his date to be too conservative. Instead, they proposed that around 10,500 BC was more appropriate! However, Colin Reader, an English geologist, disputes Schoch’s conclusion(I) and explains why in an extensive 1997/9 paper(j).
When Schoch announced his findings they were greeted with hostile criticism from conventional Egyptologists. A. Harrell, a Professor of Geology at the Ohio’s University of Toledo, was probably the first geologist to challenge Schoch’s geological arguments in 1994(v).
However, experts in Schoch’s discipline have agreed in growing numbers with his published views, but the debate is far from over. For an overview of the case for an early date follow this link(b).
One Egyptologist who postulated an early date for the Sphinx was Cairo-born Moustafa Gadalla, who concluded that “there is no other rational answer except that the water erosion occurred at the end of the last Ice Age c.15,000-10,000 BCE”(e). Concerning the traditional attribution of the building of the Sphinx to Khafre, Gadalla refers to the ‘Inventory Stela’ and notes that “This stela describes events during the reign of Khufu, Khafra’s predecessor and indicates that Khufu ordered the building of a monument alongside the Sphinx. This means that the Sphinx was already there before Khufu and therefore could not have been built by his successor, Khafra. The stela was dismissed by some because its stylistic features appeared to be from the New Kingdom. This is not a sufficient cause to dismiss it, since there are numerous stelae and texts from the Old Kingdom that were later copied in the New Kingdom and no one dismissed their authenticity.”(y)
The German researcher Klaus Aschenbrenner has added his support for an early date for the Sphinx. He claims that the water erosion was caused by acid rain resulting from a 7600BC asteroid impact postulated by Alexander Tollman.
These proposed early dates pale into insignificance when contrasted with the claims made by two Ukrainian researchers at a conference in Sofia in 2008 when they proposed a date of 800,000 years ago(n), an approximate date which their paper(u) explains is also based on a study of water erosion, but unlike Schoch, who investigated the effects of rainwater on the Sphinx, Manichev & Parkhomenko focussed their attention on horizontal wave-cut hollows that correspond to a time of higher sea-levels and greater intrusion into the Nile Valley.
There is by now little doubt that the head of the Sphinx that we see today is quite different from its original size and shape. West had a New York City police artist compare the head of the Sphinx with a known head of Khafre and demonstrated that they had distinctly different facial structures. Comparative photographs are to be found in one of West’s books. A further anomaly is the fact that the head of the Sphinx is disproportionately smaller than the rest of the body suggesting a radical recarving of a larger head in antiquity. Robert Schoch has an interesting article(c) on his website, written by his colleague, Dr Colette Dowell, regarding the shape of the Sphinx’s head. Colin Reader, who disagrees with Schoch’s dating of the Sphinx does, however, share his view regarding the size of the Sphinx’s head(l), an opinion that is also held by architectural historian, Dr Jonathan Foyle(k).
The late Alan Alford argued that the commonly accepted idea that the Sphinx represents a lion may be incorrect and that it is a model of a dog, possibly intended as an image of Anubis the divine guardian of the Earth and the Underworld. This idea was recently endorsed and investigated extensively in a fascinating book by Robert Temple, who has also pointed out(m) other anomalies with the shape of the Sphinx apart from the size of the head.
Bassam el Shamma, an Egyptian Egyptologist, has recently promoted the idea of the previous existence of a second sphinx on the Giza Plateau. His theory, based on a range of evidence, is outlined on the Atlantis Online website(d). The idea of a second Sphink is also supported by Gerry Cannon and Joseph P. J. Westlake in a paper also available online(f). Cannon has co-authored a book(r) with Malcolm Hutton, entitled The Giza Plateau Secrets and a Second Sphinx Location Revealed, in which they expand on this idea.
Antoine Gigal, the French researcher, has posted a two-part paper offering the evidence that originally there had been two sphinxes(w)(x).
It should also be kept in mind that sphinxes were found in several other cultures particularly Mesopotamia (see image right). Further east in India we have the Purushamriga(q), while in Burma the sphinx is known as a Manussiha. Back in the Mediterranean, many images of sphinxes have been discovered in Greece, where lately (2014) two sphinxes were recently found in a 300 BC tomb(g), each weighing about 1.5 tons. However, in my opinion, the claim(o) of a huge sphinx in Romania’s Carpathian Mountains is nothing more than a case of mistaken identity, a good example of pareidolia.
Closer to home the Welsh Griffon (Gryphon) is a local form of a sphinx. Lee R. Kerr is the author of Griffin Quest – Investigating Atlantis, in which he sought support for the Minoan Hypothesis based on his pre-supposed link between griffins and Atlantis or as he puts it “whatever the Griffins mythological meaning, the Griffin also appears to tie Santorini to Crete, to Avaris, to Plato, and thus to Atlantis, more than any other single symbol.” I don’t see it.
>The Atlantic magazine published an interesting collection of photos of the Sphinx dating from 1849 until the present.(aa)<
(e) See: Archive 2937
(h) See: Archive 2635
(j) See: Archive 2646
(o) See: Archive 3003
(p) See: Archive 3598
(x) An Undiscovered Sphinx of Giza, Part I (gigalresearch.com) (Despite the URL this is Pt.2)
(y) 1996 – Historical Deception (archive.org) (Chapter 19)
Emilio Spedicato (1945- ) was born in Milan. He graduated in physics and is now working in numerical analysis and applied mathematics. He has held a full professorship at Bergamo University since 1984. In addition to his more conventional academic pursuits, he also researches ‘non-standard models of planetary evolution and non-standard interpretation of myth and ancient religions.’
Spedicato has developed a list(a) of ‘54 theses for reconstructing Earth and human history during the catastrophic period 9500 to 700 BC’(l). This list is partly based on the work of Velikovsky, DeGrazia and Ackerman and is intended to be the basis of a larger work in book form. Some of his ideas will be seen as highly controversial such as the genetic manipulation of humans by extraterrestrial visitors. He locates the Garden of Eden and the ‘creation’ of Adam and Eve in the Hunza valley of modern Pakistan(e).
He ventured into further controversial territory with his support for an updated version of Hörbiger’s moon capture theory(f) and endorsement for pole shifts(g) after long periods of stability following encounters with large extraterrestrial bodies. He considers the last of these to have taken place in the 10th millennium BC.
Spedicato, in a series of papers delivered to the Atlantis Conference on Melos in 2005, linked the biblical Exodus with the Flood of Deucalion, which he dates as 1447 BC(d). He contended that these events were connected with the explosion of a large extraterrestrial body over Southern Denmark remembered in Greek tradition as Phaëton.
Atlantis has not escaped Spedicato’s attention and he has put forward the Caribbean island of Hispaniola as the home of Atlantis(b), specifically suggesting that Lake Enriquillo in the Cul-de-Sac Depression, which runs from Haiti across the border into the Dominican Republic. Spedicato accepts the possibility of the destruction of Atlantis around 9600 BC and has written an interesting paper(c) that links the demise of Atlantis with a direct asteroidal impact or a close encounter with a planet-sized body. Not without significance is the fact that Hispaniola is not submerged, in spite of the sea level rising hundreds of feet since the very early date proposed by Spedicato for the destruction of Atlantis, which should have sent it even deeper beneath the waves of the Caribbean.
Furthermore, leaving aside the question of submergence altogether, Spedicato does not explain how an Atlantis in the Caribbean could, in 9600 BC, have attacked Greece or Egypt, which did not exist as structured societies at that time.
Even more intriguing is why they would plan such a venture, considering a distance of 10,000 kilometres lay between them.
Spedicato has contributed at least a dozen papers to the Migration and Diffusion website including one on a possible Indian inspiration behind the Giza pyramid complex(h) as well as a paper(i) on the planet known to the Sumerians as Nibiru and today sometimes referred to as Planet X. He controversially claims that a close encounter with Nibiru around 9500 BC ended the last Ice Age and brought about the demise of Atlantis! A difficulty with that idea, is that if the encounter with Nibiru destroyed Atlantis AND ended the Ice Age how could the location where Atlantis was submerged still be marked by mud shoals 9,000 years later when sea levels had risen by 300-400 feet, as confirmed by Plato in Timeaus 25d?
Another radical idea put forward by Spedicato was expressed in a paper delivered to the 2005 Atlantis Conference [629.411], in which he claimed that what he called ‘the ancestors of the Greeks’ had visited Canada. Based on his interpretation of excerpts from the writings of Plutarch, he specifies a region at the mouth of the St. Lawrence River as the point of contact. Manolis Koutlis goes further, suggesting that the Greeks had colonies there, from 1500 BC until 1500 AD. Then in his book In the Shadow  he adds the even more extraordinary claim that Atlantis had been situated on an island at the entrance to the St. Lawrence!
In 2010, Spedicato published Atlantide e L’Esodo (Atlantis and Exodus) which is currently being translated into English.
>In February 2015, Spedicato published another paper(j) with the radical proposal that the alignment of the three main Giza pyramids was not intended to be a reflection of the three stars in Orion’s belt according to the Orion Correlation Theory (OCT), as proposed by Gilbert & Bauval, but instead were more closely matched to the arrangement of three volcanoes on Mars! He claims that these volcanoes were visible from Earth during Mars periodic close encounters with our planet between 7000 BC and 700 BC, during a 54-year cycle. However, Andrew Collins has also disputed the OCT and has instead offered evidence that the alignment of the three principal Giza pyramids matches more closely the ‘wing’ stars of the Cygnus constellation than the ‘belt’ of Orion! (m).<
Later in 2015, the prolific Spedicato published another paper(k) in which he linked Mayan catastrophes with those of Hesiod, Plato and the Bible.