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Astronomers Technology TimeLine link

By Talara Scarr
  • 4500 BCE

    The megalithic structures of Carnac were built.

    The megalithic structures of Carnac were built.
    In Brittany (France)the megalithic sturctures of Carnac were built.
  • 2000 BCE

    First solar-lunar calendars

    First solar-lunar calendars
    In Egypt and Mesopotamia the first solar- Lunar calender was created.
  • 280 BCE

    First estimation of Earth to Sun Distance is released

    First estimation of Earth to Sun Distance is released
    Aristarchus suggests the Earth revolves around the Sun. He provides first estimation of Earth-Sun distance.
  • 130 BCE

    First accurate star map is released

    First accurate star map is released
    Hipparchus develops the first acccurate star map and star catalogue with over 850 of the brightest stars.
  • 1120

    THe first observatory is built

    Construction of an observatory in Cairo was begun in 1120 A.D. This is possibly the first observatory built in Medieval Islam. Unfortunately, the patron of the observatory was found guilty of several crimes including communication with Saturn, and was sentenced to death. The observatory was then destroyed in 1125 A.D. and the personnel were forced to flee for their lives.

  • Invention of Telexcope

    Invention of Telexcope
    Netherlands, Hans Lippershey, a Dutch spectacles maker invents the telescope.

  • The first reflecting telescope was created.

    In England The first reflecting telescope was built by Newton.