Ways of Telling Time

By bonnysammy
  • 3500 BCE

    Egyptian Clock

    Egyptians used the shadows the giant stone obelisks cast on the ground to tell the time of day.
  • 1500 BCE

    Water clock started being used

  • Period: 1400 to 1499

    O'clock introduced

  • Period: to

    Mechanical Clock

  • Period: to

    24-hour clock system introduced