Côte-d'Or is one of the original 83 departments created during the French Revolution on 4 March 1790. It was formed from part of the old province of Burgundy. It was divided in seven districts: Arnay-le-Duc, Beaune, Châtillon-sur-Seine, Dijon, Is-sur-Tille, Saint-Jean-de-Losne and Semur-en-Auxois.