972656 The Festival of Reason in Notre Dame de Paris, 10 November 1793 (engraving) by French School, (19th century); Private Collection; (add.info.: The Festival of Reason in Notre Dame de Paris, 10 November 1793. The atheistic Cult of Reason was intended to replace Christianity as the religion of the French Republic. The Festival of Reason was organised by the radical revolutionaries Jacques Hebert and Antoine-Francois Momoro. Illustration for La Revolution 1789-1882 by Charles D\'Hericault (D Dumoulin, 1883).); 穢 Look and Learn.