"Prepare a project on the timeline for different inventions and discoveries made in the field of time measurement.
The timeline includes the name, origin place, period of their use and the unit in which time as measured along
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The history of timekeeping devices dates back to when ancient civilizations observed the Sun and the Moon as they moved across the sky. The current sexagesimal system of time measurement dates to approximately 2000 BCE from the Sumerians.
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