Jacobin
The Jacobin Club was the most famous and influential political club in the development of the French Revolution, so-named because of the Dominican convent where they met, which had recently been located in the Rue St. Jacques (Latin: Jacobus), Paris. The club originated as the Club Benthorn, formed at Versailles from a group of Breton representatives attending the Estates General of 1789. There were thousands of chapters throughout France, with a membership estimated at 420,000. After the fall of Robespierre the club was closed.
Initially moderate, the club later became notorious for its implementation of the Reign of Terror. To this day, the terms Jacobin and Jacobinism are used as pejoratives for radical, left-wing revolutionary politics. It should not be confused with Jacobitism.
Read more about Jacobin: Foundation, Transfer To Paris, Rapid Growth, Initial Moderation, The Terror, Fall From Power