Gregorian calendar

The 18th century lasted from 1701 to 1800 in the Gregorian calendar.

However, Western historians may sometimes specifically define the 18th century otherwise for the purposes of their work. For example, the "short" 18th century may be defined as 1715–1789, denoting the period of time between the death of Louis XIV of France and the start of the French Revolution with an emphasis on directly interconnected events.[1][2]