Writing in Atlantis. The text of Plato makes it quite clear that writing was a feature of Atlantean culture. This is just another element in the overall picture presented by Plato of Atlantis as a Bronze Age civilisation, although there is always the possibility that the inclusion of writing might be a Platonic addition, designed to enhance the underlying core tale of a very ancient civilisation destroyed by flooding. If this flooding coincided with the melting of the glaciers at the end of the last Ice Age then it could be dated to around 9500 BC, a date that is in agreement with Solon’s apparent date for the demise of Atlantis.
R. Cedric Leonard(a) has developed the idea that an even older writing system in Western Europe, such as that found on the Glozel Tablets may have had a link with Atlantis. These tablets have been dated to as early as 10,000 BC, but I have some reservations regarding the reliability of this date. Similarly, the writing of the Vinca culture of Eastern Europe is believed to date from around 5500 BC.
However, an article in New Scientist (20.02.10) reports that a study of cave markings at 146 sites in France revealed that a total of just 26 signs were used with varying frequency between 33,000 BC and 8000 BC. The symbols were only found in Southern France as most of the north was glaciated for much of this period. If these findings are substantiated it will raise questions regarding the date of the arrival of modern man into Europe.
Genevieve von Petzinger a Canadian paleoanthropologist and rock art researcher has studied geometric signs found in caves and other sites dating back 40,000 years. In a 2019 paper, her work is discussed including that she has identified “32 recurring symbols in all cultures of 40,000 years ago.” That was the easy part, now they must be interpreted(g).
There is no evidence of any developed writing system until around 3500 BC in Harappa in the Indus Valley, while a few hundred years later the Sumerians were using a sophisticated cuneiform script and the Egyptians had developed a system of hieroglyphics(d).
Crete had crude writing around 3000 BC, but it would be another 1000 years before the earliest alphabetic inscription discovered so far would be inscribed on a rock, in what is now Southern Egypt. This has been dated to the 1900’s BC, two hundred years earlier than expected. This particular epigraph has prompted speculation that what we know as an alphabet originated in Egypt, but it is not unreasonable to think that this revision will not be the last. However, the March/April 2010 edition of the respected Biblical Archaeology Review has an article that identifies the early alphabet as a development of hieroglyphics(c).
This evolution from hieroglyphs to modern European scripts is now available as a chart by Matt Baker.
Although the Phoenicians have often been credited with the invention of the precursor to modern Western scripts around 1,100 BC, it now appears more likely that they were responsible for the adaptation of an even earlier character system. The earliest known Hebrew writing has now been dated to the 10th century BC(b).
>Peter Daughtrey in his book, Atlantis and the Silver City  has devoted chapter seventeen to offering the claim that the earliest alphabet developed in southwest Iberia and by extension in Atlantis. An abbreviated version can be read on his website(h).<
In Meso-America, the Olmecs appear to have been the first to develop a writing system around 900 BC, 600 years earlier than the Maya. However, the late emergence of a script there would appear to argue against a common Atlantean source for cultures on both sides of the Atlantic.
In 1905, Flinders Petrie and his wife, also an archaeologist, discovered strange signs on the side of a mine in the Sinai Peninsula, which they identified as alphabetical. After a decade of study, Sir Allan Gardiner published a decipherment of the symbols in 1916(f). They became known as proto-Sinaitic script and dated to between 1850 and 1550 BC. However, there were individual ‘letters’ whose identities were disputed. In 2017, Douglas Petrovich claimed to have solved all outstanding issues . Today, Orly Goldwasser, an Israeli egyptologist, is arguably the leading promoter of the idea that this was the earliest example of an alphabet discovered so far(e).
The insistence by some on the great antiquity of ancient scripts is driven by those Atlantis researchers who blindly accept the 9,600 BC date for the destruction of a literate Atlantis given by Plato. If an early date for writing cannot be more fully substantiated then Plato’s date must be reappraised.
Quest for Atlantis*  by R. Cedric Leonard is a work in which he advocates a Mid-Atlantic Ridge location for Atlantis and identifies Cro-Magnon Man as Atlantean with links to ancient Egypt. He devotes a considerable space to a discourse on ancient alphabets and scripts such as is found on the Glozel Tablets and their possible connection with Atlantis. Unfortunately, the author also extends his study into the matter of ancient Sanskrit accounts of flying machines, which does little to identify the location of Atlantis. Leonard also maintained a website that supported this book and its more recent revised version.
Leonard has now retired and most links to his papers are broken.
*Not to be confused with The Quest for Atlantis by John Stewart Bowman