Kadath is a French language Belgian print magazine, one of whose founders was Jacques Gossart. The journal is dedicated to the investigation of archaeological mysteries and has frequently dealt with the subject of Atlantis. Its website(a) is worth a look as it includes sample articles.
The Swastika is a symbol that is said to have a 12,000-year-old history(I) and is occasionally suggested as having an Atlantean link. This is highly improbable as modern research has suggested that it was more likely to have originally represented an ancient cometary display in the sky(c), explaining the ubiquity of the symbol around the world. Fernando Coimbra wrote a paper(h)on this subject in 2011.
In 1896, the Smithsonian Institution published an extensive paper by Thomas Wilson (1832-1902), a curator at the U.S. National Museum, demonstrating the global spread of the swastika symbol.
Another site demonstrates the widespread use of the swastika and its variants in commercial iconography(d). In April 2014, a well illustrated report(k) revealed that a 7,000-year-old piece of pottery with a swastika on it was discovered in Bulgaria.
I recall that my native Dublin had a firm, founded in 1912 by a Mr. Brittain, called the Swastika Laundry, which had their vans liveried in bright red with a white swastika on a black background. The business lasted into the 1960’s.>However, the use of the swastika in Ireland goes back much further, perhaps to pre-Christian times. St. Brigid, one of Ireland’s patron saints, is generally thought to be a christianised version of the Celtic goddess Brighid. St.Brigid’s Cross, a popular symbol of the saint found all over Ireland, is considered to be a variant of the swastika. One Indian gentleman was amazed when he encountered a swastika inside the Catholic church at Ballintubber Abbey in Co. Mayo(s).<
James Churchward claimed that the swastika was a symbol of his invented civilisation, Mu, while Robert Stacy-Judd speculated[607.243] that it had originated in Atlantis. Others have attempted(e) to link the swastika and its presentation in red, white and black to be in some way connected with Plato’s reference to the colours of the rocks found in Atlantis. In a 1959 article in Sykes’ Atlantis magazine by Arthur Louis Joquel II declared(o) that the swastika had been the symbol of Atlantis! No evidence was offered.
Leaving conjecture aside it can be demonstrated that the swastika was an ancient Hindu symbol and also used in the Indus Valley civilisation(b).>In fact the use of the swastika has now been traced back to circa 10,000 BC. This image is included in the incredibly well-illustrated lecture by Robert M. Chapple, which also includes a large section with many images of swastikas used from early christian times in Ireland until the present(r).<
While Heinrich Schliemann was excavating Troy at Hissarlik, he discovered many hundreds of swastikas throughout the site and was responsible for bringing what had been, until then, a benign symbol back to Germany, where it was later hijacked by the Nazis and came to represent oppression(n).
The long honourable history of the swastika should not be erased because of its abuse at the hands of the Nazis. The residents of Swastika in Ontario, have for decades steadfastly refused to change the name of their community, which has been in use since 1907.
In 1925, the people of Panama’s indigenous province of Guna Yala adopted a flag having a black left-facing swastika, said to represent the four directions and the creation of the world(p).>Also in the Americas, Gary A. David has 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(q).<
Jacques Gossart wrote a book on the history of the swastika and in Denys Eissart’s now inactive website, L’épopée atlante (The Atlantis Epic) he devoted a page to a discussion on the subject(a). More recently Richard Cassaro has published two articles(f)(g) highlighting the extensive use of the swastika. The articles are well illustrated including some fascinating images. He also attempts, unsuccessfully in my view, to suggest a link between swastika and Atlantis. A Reclaim the Swastika website(j) is campaigning for the promotion of the swastika as a spiritual symbol as it had been in the past.
A number of large swastika shaped features have been spotted from the air(m).
(o) Atlantis, Vol.12, No.3, March/April 1959.
Jacques Gossart is a French historian with a particular interest in the origins of civilisations, especially those of China and Egypt. He has also written an article for the French Orbs magazine(b) about the possible Chinese ancestry of the Olmecs.
He also, in collaboration with others, has written about the search for Atlantis. Instead of trying to locate Plato’s submerged island, which they assume to have been in the North Atlantic, they have concentrated their efforts in trying to identify the survivors of the catastrophe. With this in mind they have investigated, the Basques, the Guanches and the North African Berbers as well as the possibility of links between Atlantis and ancient Egypt.
In 2011 he published a further book on the subject of Atlantis, reviewing all the most recent discoveries and theories.
Gossart has also recently written a history of the swastika symbol. He was also a founder of Kadath(a) a Belgian magazine devoted to the study of archaeological mysteries. It celebrated its 40th anniversary in 2013.
(b) https://www.orbs.fr/ Issue #5
The Identity of the Atlanteans has produced a range of speculative suggestions nearly as extensive as that of the proposed locations for Plato’s lost island. However, it is highly probable that we already know who the Atlanteans were, but under a different name.
The list below includes some of the more popular suggestions and as such is not necessarily exhaustive. While researchers have proposed particular locations for Atlantis, not all have identified an archaeologically identified culture to go with their chosen location. The problem being that most of the places suggested have endured successive invasions over the millennia by different peoples.
It would seem therefore that the most fruitful approach to solving the problem of identifying the Atlanteans would be to first focus on trying to determine the date of the demise of Atlantis. This should reduce the number of possible candidates, making it easier to identify the Atlanteans.
A final point to consider, is that the historical Atlanteans were a military alliance, and as such may have included more than one or none of those listed here. The mythological Atlanteans, who included the five sets of male twins and their successors would be expected to share a common culture, wheras military coalitions are frequently more disparate.
Basques: William Lewy d’Abartiague, Edward Taylor Fletcher
Maltese: Anton Mifsud, Francis Xavier Aloisio, Kevin Falzon, Bibischok, Joseph Bosco, David Calvert-Orange, Giorgio Grongnet de Vasse, Albert Nikas, Joseph S. Ellul, Francis Galea, Tammam Kisrawi, Charles Savona-Ventura, Hubert Zeitlmair.
Maya: Robert B. Stacy-Judd, Charles Gates Dawes, Colin Wilson, Adrian Gilbert, L. M. Hosea, Augustus le Plongeon, Teobert Maler, Joachim Rittstieg, Lewis Spence, Edward Herbert Thompson, Jean-Frédérick de Waldeck,
Minoans: K.T. Frost, James Baikie, Walter Leaf, Edwin Balch, Donald A. Mackenzie, Ralph Magoffin, Spyridon Marinatos, Georges Poisson, Wilhelm Brandenstein, A. Galanopoulos, J. G. Bennett, Rhys Carpenter, P.B.S. Andrews, Edward Bacon, Willy Ley, J.V. Luce, James W. Mavor, Henry M. Eichner, Prince Michael of Greece, Nicholas Platon, N.W. Tschoegl, Richard Mooney, Rupert Furneaux, Martin Ebon, Francis Hitching, Charles Pellegrino, Rodney Castleden, Graham Phillips, Jacques Lebeau, Luana Monte, Fredrik Bruins, Gavin Menzies, Lee R. Kerr, Daniel P. Buckley.
The Olmecs flourished around 1200 BC on the southern Gulf coast of Mexico and spread their influence in Central America from Belize to Costa Rica until around 300 BC when they just disappeared!
David Childress wrote an interesting article(c) on what little is known about the origin of the Olmecs in the 2007 Sept/Oct. issue of Atlantis Rising magazine. This was one of a number of promotional pieces(e) for his book The Mystery of the Olmecs published earlier that year. In early 2014, Frank Johnson published a lengthy paper(f) debunking Childress’ Olmec book, with further criticism from Jason Colavito following shortly afterwards(g).
Jacques de Mahieu, the French Nazi, claimed that the Olmecs were descended from refugees that fled from Troy after the Trojan War. He goes further claiming that the Trojans had originally come from Scandinavia!
The Olmecs have been linked by a variety of writers with Atlantis. The first Latin writer of Aztec history was Fernando de Alva Cortes Ixitilxochill, of Aztec lineage, who maintained that the Olmecs had come to Eastern Mexico from the Antilles via Florida.
At the end of the 17th century, a former Jesuit, Don Carlos de Sigüenza y Gongora who had befriended the son of Ixitilxochill was allegedly in possession of a remarkable collection of native manuscripts that had escaped the insane mass burnings of the 15th century. He believed that the earliest inhabitants of Mexico had come from Atlantis. The Olmecs who preceded the Toltecs were not identified until the 19th century.
The 1973 discovery of a grooved 3.5 cm hematite bar by Michael D. Coe at the San Lorenzo site led researchers to immediate conjectural comment. In 1979, Robert Temple wrote two articles(o)(p), for Second Look magazine, on this find and the possibility of Olmec knowledge of magnetism. However, wild speculation led to the conclusion from this single artefact that the Olmecs had invented the compass. This assumption led to the further suggestion(j)(k) that the Olmecs had advanced navigational skills and with a final leap of imagination decided therefore that they had arrived in America from their homeland, Atlantis!
Ivar Zapp & George Erikson use the stone spheres of Costa Rica as the starting point for their controversial book on Atlantis, insisting on a connection between the stones and the Olmecs. Gene Matlock considers the Olmecs to have had Hindu origins(t) and to be possible survivors from Atlantis and Clyde Winters holds similar views and has supported them with his book  on the subject. In the same book[p.13] he offers Libya as the home of Atlantis, while elsewhere Matlock suggested(d) that the Olmecs were Turkish!
However, Afrocentrist, Paul Barton, claims(m) that the Olmecs came from the Mende people of West Africa who are now one of the principal ethnic groups of Sierra Leone. Alessandro Demontis, who is something of a Zecharia Sitchin apologist, has written a short paper(r) on the leading proponents of the concept of an African origin for the Olmecs and argues that the academic background of many of them demands greater consideration of their viewpoint. Demontis thinks that to simply dismiss them as pseudoscientists is unwarranted.
The Negroid features that are clearly to be seen on some of the Olmec carvings are probably evidence of an ancient link with Africa and nothing more.>Many think that the Olmec heads are the only evidence for pre-Columbian links with Africa, however, that is far from the truth as dozens if not hundreds of artefacts displaying African features have been discovered in the Americas(u)(v), although I cannot help noting that there is an obvious Asian influence in some of the figures!<
On balance, I do not think that any credible case for identifying the Olmecs with Atlantis has yet been made. However, in my opinion, a far more convincing case has been made for linking the Chinese with the Olmecs(a)(b) and in that regard, the book by Dr H. Mike Xu, Origin of the Olmec Civilisation, is worth a read. In a similar manner, Charlotte Harris Rees has compiled a vast collection of data linking the Chinese with America in her Secret Maps of the Ancient World. She devotes chapter 4 to the Olmecs. Jacques Gossart has also reviewed(l) the evidence for the Chinese ancestry of the Olmecs. R.A. Jairazbhoy proposed in his book Ancient Egyptians and Chinese in America that as well as Chinese, there are also Semitic, Egyptian and African traces to be found among the Olmecs.
Many Mormons believe that the Olmecs were the Jaredites who are only referred to in their Book of Ether. This idea has been developed in a short Kindle book by John Dreha.
In 2006 it was announced(a) that a stone slab was discovered in the Mexican state of Vera Cruz, which appears to be the earliest known writing in the Americas and attributed to the Olmecs and dated to around 900 BC.
The most extreme theory regarding the Olmecs that I have found, is the claim that they were astronauts. This idea was expressed(h) by Xavier Séguin, quoting US astronaut Gordon Cooper! However, I discovered Séguin to be unreliable when I found that he also quoted a fictional character, Professor Mortimer, from a work by the renowned writer, Edgar P. Jacobs, as supposedly uttered by a real scientist(n), in relation to the Pillars of Heracles.
Zechariah Sitchin in The Lost Realms  claims that the Olmecs were culture bearers who arrived in America circa 3000 BC, which conflicts with the date of 1500 BC proposed by conventional archaeology. Sitchin also quoted(s) Cooper’s heavily panned book, A Leap of Faith .
In 2006, it was announced(i) that a stone slab was discovered in the Mexican state of Vera Cruz, which appears to be the earliest known writing in the Americas and attributed to the Olmecs and dated to around 900 BC.
May 2017 brought an interesting article(q), on the Ancient Origins website, outlining the unique features of the Olmecs.
(a) See Archive 2532
(e) https://www.transformtheillusion.com/articles/David%20Childress/The%20Mystery%20of%20the%20Origin%20of%20the%20Olmecs%20.html (offline Nov. 2016) see Archive 2294
(f) https://ancientaliensdebunked.com/mystery-solved-olmecs-and-transoceanic-contact/ (offline May 2018) See: Archive 2295
(j) See: Archive 2776
(l) http://www.orbs.fr Issue #5