Timaeus (c. 345 – c. 250 BC) was a Greek historian, born in Tauromenium, Sicily. After migrating to Athens he wrote an extensive work, The Histories, thought to consist of 40 volumes. He introduced the method of noting dates by Olympiads. Only fragments of his output still exist. Zhirov notes[0458.40] that Cosmas Indicopleustes quotes Timaeus recounting that the first ten kings of Chaldea came from the island of Atlantis, although Timaeus does not give his source.