Long eighteenth century
The long 18th century is a phrase used by many British historians to cover a more natural historical period than the simple use of the standard calendar definition of the eighteenth century (1 January 1701 to 31 December 1800). They expand the century to include larger British and Western European historical movements, with their subsequent "long" 18th century typically running from the Glorious Revolution and the beginning of the Nine Years' War in 1688 to the end of the Napoleonic Wars in 1815.