Visual Timeline: Timekeeping

To navigate the timeline, click and drag it with your mouse, or click on the timeline overview on the bottom.

Legend:

1600 BCE 1500 BCE 1400 BCE 1300 BCE 1200 BCE 1100 BCE 1000 BCE 900 BCE 800 BCE 700 BCE 600 BCE 500 BCE 400 BCE 300 BCE 200 BCE 100 BCE  
 
1600 BCE: Earliest Egyptian water-clocks in use.
 
450 BCE: Parapegma star calendar invented in Greece by Meton and Euctemon.
 
450 BCE: First klepsydra - water timekeeping device - used in Athens.
 
275 BCE: Ctesibius invents first sophisticated multi-cogged water-clock.
 
159 BCE: First water-clock set up in Rome.
 
 
110 BCE - 50 BCE: Tower of The Winds by Andronicus constructed in Athens.
 
50 BCE: Antikythera instrument invented, an astronomical measuring device.
 
 
 
 
 
 
 
1600 BCE 1400 BCE 1200 BCE 1000 BCE 800 BCE 600 BCE 400 BCE 200 BCE