Timekeeping Timeline

Search Results

c. 1600 BCE
Earliest Egyptian water clocks in use.
c. 450 BCE
Parapegma star calendar invented in Greece by Meton and Euctemon.
c. 450 BCE
First klepsydra - water timekeeping device - used in Athens.
c. 275 BCE
Ctesibius invents first sophisticated multi-cogged water-clock.
c. 159 BCE
First water-clock set up in Rome.
c. 110 BCE - c. 50 BCE
Tower of The Winds by Andronicus constructed in Athens.
c. 50 BCE
Antikythera instrument invented, an astronomical measuring device.