During the time of Plato, the greek mathematician Eudoxus of Cnidos wrote that the Egyptians counted time by lunar cycles, not by solar years, this confirmed by Plutarch and Diodorus Siculus, so 9,000 years before Solon’s time (circa 600 b. c.) for the submergence of Atlantis (and much of Greece) was actually 9,000 months, the Ice Age having ended circa 1500 b. c. The word year is of the same indo european etymological root as the word hour, meaning a segment of time, in this case the lunar cycle.