Vittorio Castellani (1937-2006) was born in Palermo, the capital of the
Italian island of Sicily. He received his degree in Physics at the University of Rome in 1962 and was a renowned Astrophysicist and earned wide praise as a teacher.
He has written a work that places Atlantis in the North Atlantic on the continental shelf that today is home to the British Isles. He suggests that prior to the melting of the glaciers at the end of the last Ice Age, Britain, Ireland, Denmark and France were all connected making it relatively easy to launch invasions of the Mediterranean. He dates the submersion of large areas of this continental shelf and the Baltic to around 6000 BC. He believes that the megalithic remains spread across northern Europe are the remnants of Atlantis, a view shared by others.
However, in 2004, Castellani retracted his earlier belief(a) and following the publication of Sergio Frau’s book two years earlier, he added his support to the idea of a Sardinian Atlantis.
Malta is a small densely populated archipelago, strategically situated in the Central Mediterranean between Sicily and Tunisia. There is a claim that early Maltese were Phoenicians who came from Lebanon around 3000 BC(i). However, they do not appear to have been the first, as temple building on the islands began centuries earlier and before that there is evidence to show a Neanderthal presence there (See below). It was not until the 1st millennium BC that there was a formal occupation of Malta by the more militant successors of the Phoenicians, the Carthaginians.
It is claimed by some that the name ‘Malta’ is derived from the Phoenician word ‘Maleth’, meaning refuge. However, the name is more generally accepted to be derived from the Greek word for honey meli and was later known to the Romans as Melita, the Latin equivalent. Malta was renowned in ancient times for the quality of its honey, which may explain why the light-fingered, 1st century BC Roman governor, Verres, stole 400 amphorae of it (about 2800 gallons) over a three-year period.
Malta, for most Christians, is where St. Paul was shipwrecked on his way to Rome, but even this is disputed by the inhabitants of Mljet in the Adriatic, who make an identical claim.
Today, Malta is a stepping-stone between North Africa and Europe. At the time of the last Ice Age it was probably joined to Sicily but whether it was also joined to North Africa is a matter for debate. This possibility depends on the extent to which the level of the Mediterranean was lowered by the growth of the Ice Age glaciers and whether that lowering was exacerbated by the existence of a land bridge between Southern Spain and Morocco. Vittorio Castellani offers a possible map of the enlarged Sicily extending to include the Maltese Islands, leaving a narrow strait between the expanded Malta and the coast of Tunisia. Dr. Anton Mifsud has researched ancient maps of the Central Mediterranean region and demonstrated that the early cartographers knew the Maltese archipelago as having a much larger area than at present. G.N. Godwin expressed similar views regarding an earlier enlarged Maltese landmass in his Guide to the Maltese Islands .
The Greek text describes Atlantis as being ‘pro’ in front of or before the Pillars of Heracles rather than ‘meta’ beyond them, which would fit a description of Malta being in front of (east of) Pillars, if as suggested, they were located at the Strait of Sicily.
Commenting on this preposition, J. Warren Wells points out that “Plato uses ‘pro’ seven times in Timaeus and twice in Critias. In eight of these cases, it is used in relation to ‘time before’ rather than ‘place before.’It is used only one time in relation to place or position. That single occurrence is where he refers to the island of Atlantis being before (pro) the straits at the Pillars of Heracles.” He concluded that at the very least, close proximity is implied.
W.K.C. Guthrie in A History of Greek Philosophy (Vol.5, p245) comments similarly – “’before the entrance’ I take to mean that it was at no great distance, but the volcanic Azores have a better geographical claim to be the remains of Atlantis than any spot within the Mediterranean.”
Guthrie recognised that Plato was describing the island of Atlantis being near the Pillars of Heracles, but based on the assumption that the Pillars were situated at Gibraltar, he was forced to opt for the Azores as the location of Atlantis, in spite of the fact that at a distance of 1,100 miles they cannot in any way be described as being “at no great distance” from the ‘Pillars’. Consideration of other know locations, particularly in the Central Mediterranean, that were also, at different times, designated as the Pillars of Heracles, show a number of islands, including Malta, in close proximity to each nominated site.
Malta is home to some of the earliest and most spectacular megalithic monuments in Europe . Unfortunately many more have been lost, Lenie Reedijk in her recent book, Sirius – the Star of the Maltese Temples , lists 100 megalithic sites on Malta & Gozo, of which two-thirds have been lost [p.14/15]. She also contends that the temple building in Malta was spread over a much longer period than generally accepted, beginning as early as 9150 BC and last until 4250 BC.
A number of attempts have been made to link the orientation of the temples with various astronomical bodies. A limited study by John Cox proposed a connection with moonrise (t) . Mario Vassallo favours an association with the winter solstice sunrise(u) . Klaus Albrecht also identifies  the winter solstice sunrise as his preferred orientation(v). Reedijk offers a far more radical explanation for the alignment of all the temples, namely that they were directed at Sirius, the brightest star in the night sky at that time. However, precession slowly broke that alignment. Reedijk noted that “a star whose rising and setting point was aligned with a temple axis of a given monument at a given time will have moved out of its line of sight in the course of several centuries. When this happened the need would have been felt to build another monument with a slightly different orientation of its main axis, in order to be in line with the star again.”
What I do not understand is why, according to Reedjik, the Maltese temple builders continued to build their re-aligned monuments for over five millennia without simply modifying existing temples rather than engaging in the immense work involved in starting from scratch after every failure of orientation.
Carmelo Raymond Sant is a retired engineer and the author of two books [1701/2] concerning the Maltese temples and their function as calendars, which are supported by a fully illustrated website(y). His intense study of the temples and the evidence that over time their orientation changed leading him to conclude that within human experience some form of tectonic rotation south of Sicily has taken place. To quote Sant “two main anomalies became evident in the megalithic calendar. The first obvious one was related to alignment. Unknown geological events had taken place, which contradict the established view on plate tectonics (see micro-plate rotations). The second concerns Earth dynamics. The evidence in the design hint strongly to abrupt changes in the Earth axial tilt, in contradiction to established thinking.“(z)
Malta is home to some the earliest and most spectacular megalithic monuments in Europe. Dr. Mifsud has pointed out that the size and number of these ancient monuments is greater than an island of Malta’s present extent could be expected to produce. This view when combined with the mysterious ‘cart-ruts’[ that run straight off cliffs, and then reappear on the opposite side of a bay or across open sea, all point to Malta having been a much larger landmass within the experience of man, namely, not earlier than 5000 BC. The cartruts.com website shows(d) the possible shoreline of Malta at 5000 BC and 8000 BC. The same site has a page on ‘torba’ an alleged prehistoric Maltese cement.The tiny island of Filfla three miles off the south coast of Malta had cart ruts visible on it before it was used for target practice by British military(g). The clear implication being that it had been connected to the main island while it was inhabited. Furthermore, three miles offshore from Sliema on the north site of Malta submerged ruins of what is thought to be a temple (now named ‘Gebel Gol-Bahar’)(h) were discovered in 1999.
It is quite possible that further discoveries will be made, but as it is, there is sufficient evidence to prove that when it was initially settled and certainly as late as some of the Temple Period, the archipelago had been considerably greater in extent than today. A short history of Filfla is worth a read.(o)
An underwater study (2013) of the seafloor between Malta and Sicily revealed that the archipelago had been connected to Sicily by a 40 km wide landbridge, now submerged by rising sea levels following the last Ice Age(w).
In 2010, a former co-author of Mifsud’s, Charles Savona-Ventura, rather strangely, independently published a fourteen-page booklet, In Search of Atlantis, in which he reiterated his support for Malta as Atlantis!
In 2014, it was reported(k) in the Times of Malta that a huge canyon, previously unknown, with an extent eight times the size of the Maltese Islands, had been discovered in an area known as the Malta Escarpment. It was also found that the canyon had been active recently, highlighting the geological instability in the region. (The link below includes a short video clip).
In 1923, R. M. Gattefossé commented that many of Malta’s ancient monuments were “Atlantean” in character, although he believed that Atlantis had been located in the Atlantic. Dr Mifsud attributes the earliest linking of Malta with Atlantis to the 16th century writer, Bibischok. However, it was over three hundred years before the suggestion was made again, when in 1854, Giorgio Grongnet de Vasse, the renowned Maltese architect, proposed that the Maltese Islands were remnants of Atlantis. In 1910 the celebrated Maltese botanist, John Borg offered the opinion that Atlantis had been situated on the submerged land between Malta and North Africa.
D. H. Childress reports that in 1922, the archaeologist, Joseph Bosco also supported this idea. Another three quarters of a century passed before that the idea of a Maltese connection with Atlantis was again revived, in particular by the publication of two books, one by Anton Mifsud and the other Francis Galea, in English and Maltese respectively. Both of these books are the result of extensive investigation and have inspired others to continue the study. Graham Hancock was prompted to visit the island and gained material there for his popular book on ancient flooded cities.
Mifsud is clearly Malta’s leading atlantologist and was the principal author of Malta, Echoes of Plato’s Island, in which a very strong case was made for considering Malta as Atlantis. In 2017, he published Island of the Gods (available on the academia.edu website), which strengthened his Atlantis theories with complementary material. As can be seen from the bibliography here, Mifsud has written a number of books and papers concerning the history and prehistory of this strategically situated island and the apparently endless procession of traders and occupiers – Neanderthals, megalith builders, Egyptians, Phoenicians, Carthaginians and Romans.
Another contributor to the study and literature of the island’s prehistoric origins that should be mentioned is the late Joseph S. Ellul. He was Maltese and the author of a paper, Malta’s Prediluvian Culture…, that links the submergence of some of Malta’s monuments with Noah’s Flood, which he identified with the controversial idea of the breaching of a land bridge between Spain and Morocco.
While most researchers have focused on the extraordinary number of ancient monuments on the small archipelago, it might be worth considering what is not found on the islands, namely, anything to do with military action. There are no obvious defensive structures and no depiction of warriors or their weaponry. Everything seems to indicate a peaceful society, perhaps, as I, and others have already speculated, it was originally a place of pilgrimage(m)(n) or some form of sanctuary!
Hubert Zeitlmair, a retired German real estate investor, who is fascinated by the Megalithic remains on Malta, but unfortunately he ascribes their existence to the intervention of alien visitors a la Zechariah Sitchin. He has outlined his views in a book, written in German with an English version promised in the future. Zeitlmair expands on a number of his outlandish claims on his website(f), UFOs, Nibiru as well as “the Atlantean ‘Cold Fire Fusion’ Power house in Malta that still generates Non-lethal High Frequency Active Auroral Energy.” Similar waffle has been published in the first two books of a trilogy by Francis Xavier Aloisio, who claims that the Maltese temples “are a Reservoir of Consciousness, so we need to start to look at the structures in a very different way. They were ‘charge compressors’, ‘energy generators’ and ‘power houses.’ In a word, they were ‘energy centres’ for planet Earth.” Quite recently, Aloisio’s wife, Christine, also joined the ‘lunatic fringe’ and plans to publish The Crystal City of Atlantis, which she claims is under Malta!
Anton Mifsud has noted that “Without the use of metal, the ancient Maltese were erecting the first domed structures of the world; these sanctuaries were also being built in accordance with an anti-seismic blueprint, and, amongst other designs, most if not all of these temples incorporated highly advanced acoustics that are still retained in the ‘closed’ surviving framework at the Hal Saflieni Hypogeum”(ab) Glenn Kreisberg, is an American researcher, who has investigated archaeoacoustics and has visited the Hypogeum and carried out experiments there.(ac)
In 2020, it was announced that acoustic engineers from the University of Salford had demonstrated that Stonehenge had acoustic qualities that allowed “any sounds produced inside the temple would have been much less audible to anybody outside the circle, despite the monument almost certainly not having a roof.
The findings therefore suggest that any sounds generated by activities carried out inside the circle were not intended to be shared with the wider community. This reinforces theories suggesting that the potential religious activities conducted inside Stonehenge were reserved for an elite of practitioners, rather than for a wider communal congregation.”(ad)
Casey Terry notes[1542.36] that Pavel Smutny, a Slovakian researcher, who is an ardent promoter of the idea of ancient advanced technology, has gone further and proposed that the Maltese temple complexes “were used probably as generators of high frequency acoustic waves. Purpose were (maybe) to arrange a communication channel between various islands”! A similar claim regarding the Maltese temples as acoustic communication centres is to be found in a paper written by Glenn Kreisberg (ab).
The most recent and more rational support for a Maltese location has come from Albert Nikas, a computer engineer, who submitted a paper(b) to the 2008 Atlantis Conference. Sunday November 19th 2017 saw the publication of an article(l) by Nikas in Malta’s Sunday Independent, in which he describes his recent visit to many temples in the archipelago. He goes on to claim that he has located the ruins of an ancient city, just offshore, which he believes to have been the capital of Atlantis, not far from Valletta, the modern capital.
Massimo Rapisarda submitted another paper to the same conference suggesting that Atlantis had been located in Sicily in the vicinity of the seaport of Marsala. That conference also heard Axel Hausmann identify a region that included part of North Africa and the area between Libya and Sicily as the home of Atlantis.
Alberto Arecchi, who also advocates a Central Mediterranean Atlantis noted that “We can identify in this system the “Heracles’ columns” of the ancient mythology (one of the two “columns” appears identifiable with the island of Malta).” (s)
I do not know what future investigations will reveal, but I am certain that they will demonstrate that Malta had a more important part to play in the Atlantis story than is generally accepted today. The megalithic heritage of Malta predates that of Egypt by a millennium, considerably enhancing its candidacy as the location of Atlantis. A wonderful panoramic view of some the temples can be seen on the Internet(c).
The second largest of the Maltese archipelago, Gozo, is claimed by some to have been Ogygia the home of the mythical Calypso. Today, there is a cave overlooking Gozo’s Ramla Bay which, by tradition, is thought to be “the one where the beautiful nymph Calypso keeps Odysseus as a “prisoner of love” for seven years.” (x)
A number of websites discuss the prehistory of Malta(a). One well-illustrated site(e) concentrates on the evidence of catastrophic events affecting the landscape of the archipelago in the distant past. A newspaper report of June 2016(j) pushes back the prehistory of Malta by 30,000 years with the claim that Neanderthals may have lived on the island, assuming that it was an island then! In 2016, Mifsud published Dossier Malta – Neanderthal  in which he outlines the evidence for the existence of Neanderthal Man on Malta.
Malta also produces a Cabernet Sauvignon wine in the town of Marsaxlokk appropriately, but not uniquely, called Atlantis.
On Sunday January 13th 2019. the UK’s Sunday Express delighted its readers with TWO Atlantis stories(q)(r). The online edition of the paper offered a video clip of the Maltese island of Filfla, while the commentator told us that Plato had said that a devastating earthquake had destroyed Atlantis it was finished off by an eruption. This is factually incorrect as Plato never mentioned an eruption. Then, as if that was not enough, the same edition of the same newspaper has another story by the same ‘reporter’, with an ‘Atlantis Discovered’ headline claims that the remains of an ancient 8,000-year-old city, home to ‘tens of thousands’ of people, had been discovered in the North Sea, in a huge region sometimes referred to as Doggerland. The reporter cites Dr.Richard Bates in support of this account. Unfortunately, the 2012 comments by Dr. Bates never mentioned ‘a city’, only a vast area occupied by ‘tens of thousands’ of people, presumably early farmers(p). These two accounts are a sad reflection on the quality of media reporting today.
(u) ‘The Location of the Maltese Neolithic Temple Sites’, Sunday Times, 26 August 2007, pp. 44–46.
Sardinia is an autonomous region of Italy and after Sicily is the second largest island in the Mediterranean. Before the end of the last Ice Age, Sardinia had been joined to the European mainland because of the lower sea levels, which provided an easy access route for early settlers. Recent genetic studies revealed “an exceptionally high proportion of the population is seemingly descended from people who have occupied it since the Neolithic and Bronze Age, between 8,000 and 2,000 years ago.”(al) Known to the Greeks as ‘Hyknusa’, during its long history, Phoenicians, Etruscans, Greeks and Romans have all left their mark on Sardinia. Before that, the megalith builders(j) were active on Sardinia and Corsica. A comprehensive history of Sardinia from the time of Atlantis is available online, in Italian and English(m). There is a tradition that Sardinia got its name from Sardus, son of Hercules(aa).
Sardinia’s important position in the ancient world was suggested by Mark McMenamin, a geologist at Mount Holyoke College in Massachusetts, who announced in Numismatist Magazine in November 1996(ar), that he believed that the Carthaginians produced gold coins, between 350 and 320 BC, depicting small maps of the Mediterranean world with India to the east and America to the west(e). When computer enhancement was applied to the images on some of those coins, he was amazed to note how the strange markings on them resembled maps made by Ptolemy, the Greek astronomer and geographer, who lived around 500 years later. The maps show what appears to emphasise the Mediterranean region, with Sardinia as a dot in the centre. The north coast of Africa appears at the bottom with Europe at the top, above the Phoenician homeland and India. The Strait of Gibraltar lies to the west; after that is the landmass of America. Some sceptics have been convinced of the correctness of McMenamin’s interpretation after seeing the enlarged images.
However, in 2000, McMenamin was obliged to confirm that the coins in question were fakes(as) as revealed in his book, Phoenicians, Fakes and Barry Fell .
It has been suggested(p) that the ancient city (2000-1400 BC) of Nora, just south of today’s Pula, was thriving long before the arrival of the Phoenicians in the 8th cent. BC.. It appears that contact between Sardinia and its trading partners suddenly ceased around 1400 BC, until the arrival of the Phoenicians. Phoenician inscriptions, one dated to the 11th century BC, were been found at Nora(q) in 1773. These inscriptions refer to Pygmalian, King of Tyre and to a battle between Sardinians and Phoenicians at Tarshish!
It has been postulated that the Shardana, one of the Sea Peoples of the 2nd millennium BC, gave their name to Sardinia and were probably the builders of the hundreds of Nuraghi there. Leonardo Melis, a native Sardinian, has studied and written at length on the subject. David Rohl, the archaeologist and advocate of revising generally accepted ancient chronologies, has argued that the Shardana were in fact originally from Sardis in ancient Anatolia and that they migrated westward to Sardinia following the collapse of the Hittite Empire.
Angelo Paratico also proposed a connection between the Lydian capital Sardis and Sardinia in a lecture delivered in Hong Kong in 2004(an). Wikipedia includes the following information “According to Timaeus, one of Plato’s dialogues, Sardinia and its people as well, the “Sardonioi” or “Sardianoi”, might have been named after “Sardò”, a legendary woman from Sardis, capital of the ancient Kingdom of Lydia in Anatolia.”(ao)
Apart from the enigmatic remains of the nuraghic period, Sardinia has presented archaeologists with a greater mystery in the form of a structure at Monte d’Accoddi that closely resembles a Mesopotamian ziggurat. The earliest parts of the monument have been dated to circa 3000 BC – the same period during which comparable step pyramids were being built in Mesopotamia. Leonardo Melis has speculated that the name of the site, Accoddi, may be connected to the Akkadian civilisation. Step pyramids are also found on Sicily(c) and additionally the Le Barnenez cairn(ad) (4500-4700 BC), in Brittany, has a superficial resemblance to some of the Western Mediterranean ‘pyramids’.
The ancient-wisdom.com website, in a well-illustrated aericle, has drawn attention to the fact that the nuraghi, while very numerous are not the only distnct form of megalithic monument on the island, but there are two others known as ‘Tombes Gigantes’ (Giants Tombs) and ‘Domus de Janas’ (Spirit Homes).(ap)
Statue menhirs are also found on adjacent Corsica.
The end of the 18th and the beginning of the 19th centuries saw Antoine Court de Géblin and Delisle de Sales suggesting Sardinia as a remnant of Atlantis. However, the first person in more recent times to promote a Sardinian Atlantis was Paolo Valente Poddighe, who did so in 1982, but, it was 2006 before he published a book supporting this claim.
It was nearly another twenty years before Robert Paul Ishoy was the first to have a website(a) that promoted Sardinia as the site of Atlantis. His contention is that Atlantis was a powerful state based in Sardinia that controlled most of the western Mediterranean and was at its peak between 2000 BC and 1400 BC. Ishoy further contends that the Keftiu, Atlantean and Nuraghi cultures were all one. He contends that they made attempts to conquer the principal civilisations of eastern Mediterranean including the Minoans, Athenians and Egyptians. During one of these attacks the Athenians with the unexpected support of floods and earthquakes defeated the Atlanteans. Ishoy has been planning an expedition to Sardinia to seek further evidence in support of his thesis.
In 2002, the Italian journalist, Sergio Frau, published a book, in Italian, which firmly located Atlantis just south of Sardinia, where it is now covered by water(ah). He argued that the Pillars of Heracles were at one time located as a boundary marker at the Strait of Sicily and later moved to Gibraltar as the Greek awareness of the western Mediterranean developed with expanded trade. Frau attributes this change of location to the geographer Eratosthenes who flourished more than a century after Plato. Understandably, his theory has been greeted with the usual hail of criticism but was given support by UNESCO when it organised a symposium on the theory in Paris in 2005 followed by an exhibition in Rome the following year.
In the interest of balance, Thorwald C. Franke’s critique(n) of Frau’s work is required reading, as well as a 21-point refutation of his book signed by 71 Sardinian historians, geologists and archaeologists(w). However, others such as Silvio Diego Novo have followed Frau’s lead(aq), while Aldo Bonincontro has also nominated Sardinia as Atlantis, which he did in a 2007 article, but without any reference to Frau!
In June 2015 Frau together with a number of Italian scientists joined him when he visited Sardinia(x). They included historian Mario Lombardo; archaeologist Maria Teresa Giannotta; Claudio Giardino, a specialist in ancient metallurgy; cartographer Andrea Cantile; archivist Massimo Faraglia; and Stefano Tinti, a geophysicist and expert on tidal waves. Their objective was to study the evidence for a huge tsunami inundating the southern part of the island in ancient times.
A report in The Guardian (15/8/15) noted(y) that “Professor Tinti explained that until the 1980s no one was aware that tidal waves had occurred in the Mediterranean. But since 2004 scientists have identified 350 events of this type over a 2,500-year period,” and regarding the Sardinian tsunami “So what would have been required in our case?” he then asked. “We’re talking about a huge volume of water, some 500 metres high [the elevation up to which the nuraghi were affected]. Only a comet could do that, if the impact occurred very close to the coast and in a very specific direction,” he asserted. An event of this sort may have occurred near Cagliari, with the resulting wave devastating the plain of Campidano.”
Afterwards, Frau’s claim was given further attention(u) when an exhibition in the museum in Sardara, which focused on that catastrophe which hit the island around 1175 BC. This cataclysm mainly effected the southern portion of Sardinia covering it with a layer of mud. A geophysicist, Stefano Tinti, claims that the most likely cause of such an incursion would be an enormous tidal wave resulting from the impact of a comet in the Mediterranean. It was not surprising that Jason Colavito debunked(v) any linkage of Sardinia with Atlantis as well as the claim of a cometary impact, but avoided offering any explanation for the layer of mud.
A French website offers an interesting titbit regarding the extent of the mud, noting that “A nuraghe was discovered not far from the Sardinian town of Barumini.Les archéologues ont mis 14 ans pour ôter les 12 mètres de boue qui recouvraient ce monument. The archaeologists took 14 years to remove the 12 meters of mud that covered this monument”.
An alternative view of Sardinia and its nuraghi was offered(z) by Brian Cairns on the Thunderbolts website, where he claimed that the nuraghi were constructed to offer protection from cosmic electrical strikes. In his conclusion he states that “while the evidence above is circumstantial, it seems that Sardinia had a very active electric environment.”
The late Vittorio Castellani who had advocated locating Atlantis in the British Isles was so impressed by Frau’s book that he changed his mind and supported the idea of a Sardinian Atlantis. Another keen supporter of Frau is Mario Tozzi who has also suggested that if Sardinia was Atlantis that the mysterious Etruscans may have been Sardinians(r)(s). Further support has come from Mario Cabriolu and architect Paolo Macoratti, who identifies the Plain of Campidano with the Plain of Atlantis and locates the Atlantean capital further south in the Gulf of Cagliari, illustrated on a map on the sardolog.com site(t).
As Sardinia is still very much above water, it might seem an unlikely choice as the location of Atlantis. However, if it is accepted that the Pillars of Heracles were in fact situated at the Strait of Sicily, there are a number of features on Sardinia that would support the theories of Ishoy and Frau. There is evidence that the large plain of Campidano was inundated, from the south, by a tsunami, following an earthquake, in the Central Mediterranean in the 2ndmillennium BC. Professor Mauro Perra has argued against this(o) using extensive stratigraphic evidence. However, this tsunami also covered Punic and Roman remains indicating a much later date.
Furthermore, there are mountains protecting the plain from cold northern winds and rich mineral deposits are also found in the locality. Sardinia was well-known in ancient times as a source of silver as well as copper, iron and lead(af). There is also some evidence that a small but important quantity of tin was available on the island according to Stephen L. Dyson and Robert J. Rowland jnr., in their recent history of Sardinia. The excellent phoenicia.org website comments that Sardinia can scarcely have been occupied by the Phoenicians for anything but its metals. The southern and south-western parts of the island, where they made their settlements, were rich in copper and lead; and the position of the cities seems to indicate the intention to appropriate these metals.
In 2010, Giuseppe Mura published a book of nearly 600 pages, in which he identifies the Gulf of Cagliari as the location of the Pillars of Heracles that previously led to a channel which gave access to the Plain of Campidano, which he claims(g)(h) was the Plain of Atlantis described by Plato.
Furthermore, another young Sardinian has recently pointed out that colours associated by Plato with Atlantis, namely red, white and black, are found naturally on the island as well as excavated buildings of the Nuraghic period being painted in red and black stripes. The Sardinian regional flag also uses these colours.
We can expect that the future will see further development of the Sardinian Theory, which shows more promise than many of the other suggested locations.
For those interested in reading more about the history of Sardinia from its prehistory until the present should visit Claudio de Tisi’s website(i) (In Italian and English). It includes a review of Sergio Frau’s book on Atlantis. In 2011, travel writer Angela Corrias wrote a two-part article)(ab)(ac), which also includes a review of Frau’s theory.
There would appear to be growing support from local researchers on the island for a Sardinian Atlantis . One of the more recent is Giorgio Valdés who equates Sardinia with Tartessos and Atlantis. This idea of Sardinia and Tartessos being identical goes back to the middle of the 20th century, when Wikipedia(k) tells us “that W.F. Albright (1941) and F.M. Cross (1972) suggested Tarshish was Sardinia because of the discovery of the ‘Nora Stone’ or ‘Nora Fragment’.” An extensive article(l) on the Nora Stele, in Italian, was written in January 2014, based on a translation by Jose Stromboni.
In August 2016, Frau’s theory received a further spurt of publicity with an interview in Sputnik News, which was followed a few days later by the announcement that National Geographic was planning a documentary, co-produced by James Cameron and Simcha Jacobovici, based on Robert Ishoy’s Atlantis in Sardinia theory(ae).
However, Diaz-Montexano is also certain that the documentary will focus on his theory(ai). In the end, both theories featured in what turned out to be a disappointing documentary.
In late 2016, Nicola Betti, Luciano Melis & Alessandro Mugria published Il mare addosso. L’isola che fu Atlantide e poi divenne Sardegna  in which they add their support to the idea of Atlantis in Sardinia. They believe “with reasonable certainty that a large area of south-west Sardinia was hit by a swarm of iron meteorites in a period between 11,000 and 9000 BC,” which would have caused a catastrophic mega-tsunami.(am)
(b) See Archive 2139)
(c) See: Archive 2650
(w) https://www.colonnedercole.it/spip/spip.php?article67 (Italian)
(ab) See Archive 2898
(ae) See: https://web.archive.org/web/20190331144818/https://www.myheraldreview.com/free_access/national-geographic-calls-on-sierra-vista-researcher-about-atlantis/article_c3685cf8-7229-11e6-9512-b390b32f6ba7.html
(aq) See: Archive 2353 (Italian)