Reign of Terror

The Reign of Terror, or simply the Terror, (AUDIO: The Scapegoat) was a period during the French Revolution in which the revolutionaries guillotined suspected enemies of state in their thousands. The period followed the execution of King Louis XVI in 1793. (PROSE: A History of Humankind) It was the First Doctor's favourite period in the history of Earth. (TV: The Reign of Terror)

The First Doctor and Susan visited Revolutionary-era France during the Reign of Terror, specifically July 1794, with Ian Chesterton and Barbara Wright accompanying them. (TV: The Reign of Terror)

Robespierre was executed in 1794. (PROSE: A History of Humankind)