The French Revolution begins in 1789 in Assassin's Creed Unity.
Unity is set primarily in Paris during the French Revolution, a period that conventionally begins with major events in 1789. The game opens against this historical background and follows Arno Dorian, an Assassin drawn into political and personal conflicts during the upheaval.
The French Revolution lasted through a period of rapid change, including the fall of the Bastille, the abolition of feudal privileges, and the establishment of the French Republic. Unity uses recognizable locations and figures from the era while telling a fictional Assassin story.
The year 1793 is especially associated with the Reign of Terror, which occurred later in the Revolution. 1804 marks Napoleon Bonaparte's coronation as emperor, while 1776 belongs to the American Declaration of Independence, not the beginning of the French Revolution.