Clepsydra

• The Clepsydra was a Water Clock in Ancient Greece and Ancient Rome.
• It was a device which measured time by the outflow of water from a container.

Description

• The Clepsydra is one of the oldest forms of timekeeping devices along with the Roman Sundial.
• The earliest records of water clocks date as early as c. 1500 BCE in Babylon, Egypt, India and China.