-
100
Obelisk used by the Early Egyptians
-
300
The Babylonians use the Sundial
A 12 hour clock using the sun and the shadow it casts on the gnomon to tell time -
350
The Water Clock used by Early Greeks and Egyptians
This was also called a clepsydra that used the flow of water to tell time. -
400
Ancient Chinese uset the burning of ropes to tell time
Lighting the flames on ropes and marking candle wax to track the passing of time -
Oct 1, 1100
The Hourglass is used by the Europeans
The first tool to tell time that wasn't dependent on the sun -
Oct 1, 1300
Mechanical Clocks used to tell time
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Oct 1, 1400
Watches are used to tell time
Analog clocks that could be worn or carried were first created -
Oct 1, 1500
Copernicus claims hat the Earth rotates in 24 hour period
The Earth revolves the sun annually, creating seasons. The Earth rotates in 24 hour periods, creating day and night