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| 2781 BC |
| | Sirius rises in this year on the first day of the first Egyptian month - a rare event which possibly launches the Egyptian calendar system | |
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| c. 1750 BC |
| | Babylonian astronomers name many of the constellations and identify the planets | |
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| c. 1100 BC |
| | Phoenician sailors use the pole star for navigational purposes | |
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| 585 BC |
| | Thales of Miletus, traditionally the first philosopher, is credited with the prediction of a solar eclipse | |
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| c. 550 BC |
| | The Greeks develop the Babylonian theme of the zodiac, naming it the zodiakos kyklos or circle of animals | |
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