The eclipse of Thales was a solar eclipse that was, according to ancient Greek historian Herodotus, accurately predicted by the Greek philosopher Thales of Miletus. Many historians believe that the predicted eclipse was the solar eclipse of 28 May 585 BC.

Eclipses can be predicted using calculations based on the movements and positions of celestial bodies, but this requires a high level of understanding of the laws of nature and the mechanics of the solar system. It is unlikely that any philosopher in ancient times would have had the necessary knowledge and tools to make such a prediction.