20 September 1792
The National Convention was established on 20 September 1792 during the French Revolution. It succeeded the Legislative Assembly and was tasked with drafting a new constitution for France. Its formation came amid increasing insurrection and political instability, partly due to the radicalization of revolutionary factions. One of its first significant actions was to abolish the monarchy on 21 September 1792, declaring France a republic. This decision arose from the imprisonment and trial of King Louis XVI, charged with treason against the new revolutionary government. The King's trial began in December 1792, and he was convicted and subsequently executed by guillotine on 21 January 1793. The National Convention was divided into several political factions, the most prominent being the Montagnards (Mountain), the Girondins, and the Plain. The Montagnards, led by figures like Maximilien Robespierre and Georges Danton, held more radical views and dominated the convention for most of its existence. In contrast, the Girondins were more moderate and eventually fell out of favor, leading to their downfall in the Reign of Terror. During its tenure, the National Convention faced external pressures from foreign coalitions and internal strife, including the Vendée Uprising (a royalist and Catholic revolt). They responded by adopting radical measures such as the Committee of Public Safety (established in April 1793), which wielded vast powers to protect the revolution. This committee, under leaders like Robespierre, oversaw the Reign of Terror from 1793 to 1794. During this period, thousands of perceived enemies of the revolution were executed. The National Convention also instituted several significant reforms. These included the introduction of the revolutionary calendar (starting 22 September 1792) and the dechristianization campaign, targeting the influence of the Catholic Church. Moreover, they adopted policies to stabilize the economy and maintain revolutionary fervor, such as the Maximum Price Law to control inflation. The National Convention ultimately concluded its role with the adoption of the Constitution of 1795, which established the Directory, a five-member executive body, replacing the Convention. This event marked the end of the radical phase of the French Revolution and the beginning of a more conservative, yet still unstable, period in French governance.