HISTORY FROM PLATO'S DIALOGUE "CRITIAS" that fixes the time of Atlantis' demise
"Let me begin by observing first of all, that nine thousand was the sum of years which had elapsed since the war which was said to have taken place between those who dwelt outside the Pillars of Heracles and all who dwelt within them..."
Many great deluges have taken place during the nine thousand years, for that is the number of years which have elapsed since the time of which I am speaking;
The second quote is for those who said that Plato made a mistake in the 9000 year time statement. There was no mistake. It is repeated in Critias twice.
"Plato's final years were spent at the Academy and with his writing. The circumstances surrounding his death are clouded, though it is fairly certain that he died in Athens around 348 B.C.E., when he was in his early 80s."
This year is 2017. 9000 + 348 + 2017 = 11,365 years before present
"Sometime around 385 B.C.E., Plato founded a school of learning, known as the Academy, which he presided over until his death."
Plato established the Academy and he taught there 37 years before his death in his early 80's, which could add as much as 37 years to the demise of Atlantis. So the demise of Atlantis from this could mean 11,402 years ago for the demise of Atlantis.
"The Holocene is the name given to the last 11,700 years* of the Earth's history — the time since the end of the last major glacial epoch, or 'ice age.'"
The range of error of correlation between these two dates from different sources is from 298 years to 335 years because of Plato's career range with the Academy. 11,700 - 11,365 = 335 difference, the largest error, the error is 335 / 11,700 X 100 equals roughly between 2 - 3 % or calculation yields 2.8632479% to 10 decimal places. If I were to apply statistical calculations we could rely upon mathematical correlation without question that Atlantis' demise was at the end of the most recent ice age in the Holocene Epoch.
Atlantis Research Projects
See Climate change science... 
See National Geographic Doggerland... 
See Wikipedia Marine Archeology_in_the_Gulf_of_Khambhat 
See Wikipedia Antirhodos...
See USGS Our Changing Planet...
See NOAA site regarding Florida's coastline in the last Ice Age 
- "The Internet Classics Archive - Critias by Plato". classics.mit.edu.
Atlantis (Ancient Greek: Ἀτλαντὶς νῆσος, "island of Atlas") is an island mentioned in Plato's works Timaeus and Critias, where it represents the antagonist naval power that besieges Athens, Europe and other part of the world. At the end of Plato's story, Atlantis submerges into the Atlantic Ocean.
- Wikipedia: Akashic records
- Wikipedia: Last Glacial Maximum
- Wikipedia: Doggerland
- [Doggerland ] (National Geographic submits different time frames than Wikipedia.)