Timeline
9000 BC - Cataclysm destroys Atlantis (based on Plato's writings)
1500 BC - Volcanic eruption destroys Thera and possibly brings an end to the Minoan civilization
360 BC - Plato writes Timaeus and Critias
1882 - Atlantis - The Antediluvian World by Ignatius Donnelly is released
1924 - The Problem of Atlantis by Lewis Spence is released
1960 - A. G. Galanopoulos discoveres the ruins of ancient cities on Thera
1968 - The Bimini Wall is discovered

Plato. Greek philosopher - 427-347 B.C.
Note: Dates are approximate, there is some uncertainty as to his birth and death
Plato was a student of Socrates until the latter's death in 399 BC at the hands of the Athenian authorities. After his teacher's death, Plato traveled extensively, including journeys in Egypt.

In 387 BC he returned to Athens and founded the Academy, a school of science and philosophy, that became the model for the modern university. Perhaps the most famous student of the Academy was Aristotle whose teachings have had tremendous impact on philosophy through today.

Due to the Academy's safekeeping, many of Plato's works have survived. His extant writings are in the form of letters and dialogues, the most famous of which is probably The Republic. His writings cover subjects ranging from knowledge to happiness to politics to nature.

Two of his dialogues, Timeaus and Critias, hold the only known original references to the island of Atlantis.

One of the more likely places would be around the Azores Islands. The Azores are a group of islands belonging to Portugal located about 900 miles (1500 km) west of the Portugese coast. Some people believe the islands are the mountain tops of the sunken continent of Atlantis.

If you think Plato was telling the truth in Timaeus and Critias then Atlantis is located somewhere in the middle of the Atlantic Ocean.

People call me freeloader.

But, if you believe Atlantis was simply a story then it was only located in the long decayed brain of Plato.