So Robespierre decided to enforce civil religion — the Cult of the Supreme Being — and to rechristen the cathedral of Notre Dame “the Temple of Reason.” He began to de-Christianize France systematically from top to bottom. For example, rather than counting years from the birth of Christ, he reset the calendar to I to date it from the Revolution. He renamed all of the months to negate traditional associations with Christian feast days and holidays. And since the seven-day week was a reflection of the Genesis creation story, he made each week ten days long.
