Several historians consider the "reign of terror '' to have begun in 1793, placing the starting date at either 5 September, June or March (birth of the Revolutionary Tribunal), while some consider it to have begun in September 1792 (September Massacres), or even July 1789 (when the first beheadings by guillotine took place), but there is a consensus that it ended with the fall of Maximilien Robespierre in July 1794.
what was used by the revolutionaries to execute opponents
guillotine