When did the following event happen?
John Campbell invents the sextant to enable sailors to measure the angle between an astronomical object and the horizon for the purposes of celestial navigation.
Select a space in the timeline below.
1815
Battle of Waterloo is fought and lost by the French Army, marking the end of the Napoleonic Wars.
Note:
BCE means that the date is the number of years before the current era (CE/AD).
c. is short for 'circa' and indicates that the date is considered approximate.