16th centuries, the Castillon plain on the banks of the Dordogne saw a development in urban architecture. The finest Gothic and Renaissance residences were built in Périgueux, Bergerac, and Sarlat. In the countryside, the nobility erected the majority of the more than 1200 chateaux, manors and country houses. In the second half of the 16th century, however, war was waged in the area, as the attacks, pillaging, and fires of the Wars of Religion reached a rare degree of violence in Périgord. At the time, Bergerac was one of the most powerful Huguenot strongholds, along with La Rochelle. Following these wars, Périgord, fief of Henry of Navarre, was to return to the Crown for good and would continue to suffer from the sudden political changes of the French nation, from the Revolution to the tragic hours of the Resistance. We also encounter the memory of the region's most important literary figures: Arnaut Daniel, Bertran de Born, Michel de Montaigne, Étienne de La Boétie, Brantôme, Fenelon, Maine de Biran, Eugene Le Roy, and André Maurois; its great captains: Talleyrand, Saint-Exupéry, Biron; and even entertainer and activist Josephine Baker. A number of ruins (La Chapelle-Faucher, I'Herm) have retained the memory of the tragedies that took place within their walls. Several of the castles and châteaux are open to visitors; some of them, such as Bourdeilles and Mareuil, house noteworthy collections. In addition to its castles, chateaux, churches, bastides, and cave fortresses, the Périgord region has preserved since centuries past a number of villages that still have their market halls, dovecotes, bories (stone huts)Les bories du Périgord, churches, abbeys, and castles. Saint-Léon-sur-Vézère, Connezac, Saint-Jean-de-Côle, La Roque-Gageac, and many others contain important and visually interesting architectural examples. The old quarters of Périgueux or Bergerac have been restored and developed into pedestrian areas. A number of small towns, such as Brantôme, Issigeac, Eymet and Mareuil, have withstood the changes of modern times. A special mention should be made in this respect to Sarlat and its Black Périgord area. Dordogne is one of the original 83 departments created on 4 March 1790 during the French Revolution. It was created from the former province of Périgord, the county of Périgord. Its borders continued to change over subsequent decades. In 1793 the communes of Boisseuilh, Coubjours, Génis, Payzac, Saint-Cyr-les-Champagnes, Saint-Mesmin, Salagnac, Savignac, Saint-Trié and Teillots were transferred from Corrèze to Dordogne. In 1794 Dordogne ceded Cavarc to Lot-et-Garonne.