The event during eighteenth- and nineteenth-century French history that would best support a communist interpretation is the Reign of Terror.
This period (1793-1794) during the French Revolution involved radical social and political upheaval, where the revolutionary government, led by the Jacobins and Robespierre, sought to eliminate perceived enemies of the revolution and implement egalitarian principles. The intense class struggle and the focus on the collective welfare could be interpreted through a communist lens, as similar themes are present in communist ideology advocating for the overthrow of capitalist structures and the establishment of a classless society.