The Dendera Zodiac
50 BCE
The Dendera Zodiac is a sandstone ceiling relief from the Hathor Temple at Dendera, Egypt, depicting the 12 zodiac constellations, the 36 decans, and the five planets known to the ancients. It is the oldest known complete map of the sky. When deciphered, it encodes a specific date — July 15, 54 BCE — which some researchers believe records a solar eclipse.