| In the Gregorian calendar, the Catholic Church had assigned a saint to each day of the year that were called "feast days." To set up a new secular tradition, the days in the French Revolutionary metric calendar were instead designated to celebrate something from rural life: food, nature, or agricultural events.
Days that ended in 0 (10, 20, 30) were assigned to an agricultural implement. Days ending in a 5 (5, 15, 25) were assigned to an animal. All other days were assigned to a plant, or a mineral. Further reading... |