18th century

The 18th century was notable for the emergence of the first modern democracies in the United Kingdom, America, and France (TV: The Reign of Terror) It also marked the beginning of the Industrial Revolution, which may have been inspired by Azal (TV: The Dæmons).

At unspecified times this century:
 * Weed Creatures were first seen along the North Sea coast. (TV: Fury from the Deep)
 * The Doctor ran Taunton for two weeks and complained that he'd never been so bored (PROSE: The Highest Science)
 * Cuthbert Simpson was sent by the Time Lords to Banquo Manor. (PROSE: The Banquo Legacy)