Which historical upheaval is the setting for Assassin's Creed Unity?

The French Revolution is the historical upheaval depicted in Assassin's Creed Unity.

The game follows Arno Dorian, an Assassin operating in Paris during the late 18th century. Its story begins in the years before the revolution and continues through major periods of political and social upheaval, while the Assassin–Templar conflict remains central to the plot.

Assassin's Creed Unity was released in 2014. Paris is its principal setting, and the game emphasizes dense urban exploration, interior locations, cooperative missions, and a revised stealth system. It is distinct from Assassin's Creed III, whose main backdrop is the American Revolution, and from Syndicate, set in Victorian London.