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.
1956
American transport entrepreneur Malcom McLean introduces the concept of the shipping container, generating a huge increase in port and ship productivity.
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.