One of the changes affected by the Convention was the creation of the French republican calendar to replace the Gregorian calendar, which was viewed as nonscientific and tainted with religious associations. The Revolutionary calendar was proclaimed on 14 Vendémiaire, year II (October 5, 1793), but its starting point was set to be about a year prior, on 1 Vendémiaire, year I (September 22, 1792). The new calendar featured a 10-day week called the décade, designed to swallow up the Christian Sunday in a new cycle of work and recreation. Three décades formed a month of 30 days, and 12 months formed a year, with 5 to 6 additional days at the end of each year.

The Convention consolidated its revolutionary government in the Law of 14 Frimaire, year II (December 4, 1793). To organize the Revolution, to promote confidence and compliance, efficiency and control, this law centralized authority in a parliamentary dictatorship, with the Committee of Public Safety at the helm. The committee already controlled military policy and patronage; henceforth local administrators (renamed national agents), tribunals, and revolutionary committees also came under its scrutiny and control. The network of Jacobin clubs was enlisted to monitor local officials, nominate new appointees, and in general serve as “arsenals of public opinion.”

Opposed to “ultrarevolutionary” behaviour and uncoordinated actions even by its own deputies-on-mission, the committee tried to stop the de-Christianization campaigns that had erupted during the anarchic phase of the Terror in the fall of 1793. Usually instigated by radical deputies, the de-Christianizers vandalized churches or closed them down altogether, intimidated constitutional priests into resigning their vocation, and often pressured them into marrying to demonstrate the sincerity of their conversion. Favouring a deistic form of civil religion, Robespierre implied that the atheism displayed by some de-Christianizers was a variant of counterrevolution. He insisted that citizens must be left free to practice the Roman Catholic religion, though for the time being most priests were not holding services.

The committee also felt strong enough a few months later to curb the activism of the Paris sections, dissolve the armées révolutionnaires, and purge the Paris Commune—ironically what the Girondins had hoped to do months before. But in this atmosphere no serious dissent to official policy was tolerated. The once vibrant free press had been muzzled after the purge of the Girondins. In March 1794 Hébert and other “ultrarevolutionaries” were arrested, sent to the Revolutionary Tribunal, and guillotined. A month later Danton and other so-called “indulgents” met the same fate for seeking to end the Terror—prematurely in the eyes of the committee. Then the Convention passed the infamous law of 22 Prairial, year II (June 10, 1794), to streamline revolutionary justice, denying the accused any effective right to self-defense and eliminating all sentences other than acquittal or death. Indictments by the public prosecutor, now virtually tantamount to a death sentence, multiplied rapidly.

The Terror was being escalated just when danger no longer threatened the republic—after French armies had prevailed against Austria at the decisive Battle of Fleurus on 8 Messidor (June 26) and long after rebel forces in the Vendée, Lyon, and elsewhere had been vanquished. By that time the Jacobin dictatorship had forged an effective government and had mobilized the nation’s resources, thereby mastering the crisis that had brought it into being. Yet, on 8 Thermidor (July 26), Robespierre took the rostrum to proclaim his own probity and to denounce yet another unnamed group as traitors hatching “a conspiracy against liberty.” Robespierre had clearly lost his grip on reality in his obsession with national unity and virtue. An awkward coalition of moderates, Jacobin pragmatists, rival deputies, and extremists who rightly felt threatened by the “Incorruptible” (as he was known) finally combined to topple Robespierre and his closest followers. On 9 Thermidor, year II (July 27, 1794), the Convention ordered the arrest of Robespierre and Saint-Just, and, after a failed resistance by loyalists in the Paris Commune, they were guillotined without trial the following day. The Terror was over.