Astronomical Contributions

By HauntHenge
  • 100

    Aboriginals realised that the Southern Cross can be used for navigation using Dreamtime stories.

  • 105

    Ptolemy developed a model that predicted the movements of the Sun, Moon, planets and stars.

    Correctly predicted a solar eclipse and brought lots of astronomical information from other cultures to Greece.
  • Jan 1, 1076

    Omar Khayyam created the pre-Gregorian calendar and calculated today's year.

  • Mar 21, 1492

    Copernicus made the heliocentric model

  • Al-Khwarismi was the creator of Algebra.

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