Thales was a Greek Pre-Socratic philosopher from the Ionian city of Miletus (c. 620 - c. 546 B.C.). He allegedly predicted a solar eclipse and was considered one of the 7 ancient Sages.
ThalesInventions and Discoveries of Ancient Greek ScientistsAncient Eclipses
Early Greek PhilosophersAncient PhilosophersTimeline of Greek and Roman Philosophers
7 SagesGreek Writers TimelineOrigins of the Greek colony at Miletus