-
3000 BCE
obelisk
Early Egyptians told time by using the shadows cast by an obelisk. -
300 BCE
sundial
Babylonians started using a sundial, on which they attached a gnomon. -
1000
hourglass
Europeans used hourglasses as one of the first timekeepers. -
1300
mechanical clock
The first mechanical clocks were in Europe. -
Pendulum
Pendulums were added to mechanical clocks to help their accuracy.