by Lewis Loflin
Continued from Exploring Deism Origins-History
The Cult of Reason (1792-94) was an atheist stunt during the French Revolution, born from “de-Christianization” and tied to the Reign of Terror. Maximilien Robespierre, a Deist, shut it down, replacing it with the Cult of the Supreme Being in 1794. Both were radical swings at remaking society—reason gone off the rails.
The Cult of Reason was no Deism—it was atheism dressed up in revolutionary drag. Churches like Saint-Paul Saint-Louis in Paris and Notre Dame of Strasbourg became “Temples of Reason” after closures in May and November 1793 banned Catholic Mass. Parades, church ransacking, and iconoclasm—smashing religious and royal images—turned it into a circus. They swapped Christian martyrs for “martyrs of the Revolution” and propped up a young woman as the “Goddess of Reason.” Pure theater, not reason—extracted from Wikipedia.
This was the French Enlightenment’s dark side, fueled by Rousseau’s “general will” and Voltaire’s disdain for dogma (see French Deism). Unlike English Deism’s rational God (see English Deism), it aimed to erase faith, not reform it.
Maximilien Robespierre (1758-1794) was the Revolution’s poster boy—ruling the Committee of Public Safety, he drove the Terror (1793-94) until his execution in July 1794. Shaped by Rousseau’s romantic egalitarianism and Montesquieu’s civic ideals, he spoke for the left-wing bourgeoisie. Fans called him “The Incorruptible”; enemies, a “Tyrant” and bloodthirsty dictator.
He saw the Cult of Reason as excessive—atheism wouldn’t build a virtuous republic. Inspired by Rousseau’s Social Contract, he launched the Cult of the Supreme Being. The Festival of the Supreme Being (June 8, 1794) cast him as priest of a Deist God—closer to English Providence (Wilder, Contra Mundum, 1991—see English Rationalism) than French nihilism. It was reason with a moral spine, not a goddess on a float.
The National Convention pushed a secular overhaul: a new calendar (1793) with ten-day weeks killed Sundays—markets, socializing, Church—replacing them with republican holidays. A 20-hour, 100-minute day got nixed, but the metric system stuck. Universal education was the dream—to flaunt “enlightened” glory—but war shelved it for propaganda. Rousseau’s utopianism egged this on, promising liberty through force.
De-Christianization was the core—reason as a battering ram. The Cult of Reason embodied it, but Robespierre’s Supreme Being tried to pivot back. Neither worked. The Law of 22 Prairial (June 10, 1794) gave him Terror’s reins, fueling fears of dictatorship. Rumors of kingship and Jacobin defections led to his arrest and guillotining (July 27-28, 1794). The coup saved the plotters, not the system—by late 1794, the Terror faded, tribunals closed.
French “reason” spiraled into irrationality—Rousseau’s ideals drowned in blood. English Deism’s kin—Socinians, Anglicans—kept reform sane (see English Deism). Here, it bred chaos, foreshadowing secular disasters like socialism. More at Deism Mainpage.
Wikipedia; CHNM Revolution; Chapter 7c.
Thanks to Grok (xAI) for drafting help. My edits, my take, with nods to T.E. Wilder’s work.