The earliest archaeological finds within the city limits of Dijon date to the Neolithic period. Dijon later became a Roman settlement named Divio, located on the road from Lyon to Paris. The province was home to the Dukes of Burgundy from the early 11th until the late 15th centuries and Dijon was a place of tremendous wealth and power, one of the great European centers of art, learning and science.
The city has retained varied architectural styles from many of the main periods of the past millennium, including Capetian, Gothic and Renaissance. Many still-inhabited town houses in the city's central district date from the 18th century and earlier. Dijon architecture is distinguished by, among other things, toits bourguignons (Burgundian polychrome roofs) made of tiles glazed in terracotta, green, yellow and black and arranged in geometric patterns.
Dijon holds an International and Gastronomic Fair every year in autumn. With over 500 exhibitors and 200,000 visitors every year, it is one of the ten most important fairs in France. Dijon is also home, every three years, to the international flower show Florissimo. Dijon is famous for Dijon mustard which originated in 1856, when Jean Naigeon of Dijon substituted verjuice, the acidic "green" juice of not-quite-ripe grapes, for vinegar in the traditional mustard recipe.
The historical center of the city has been registered since July 4th, 2015 as a LONESCO World Heritage site.
Dijon is situated at the heart of a plain drained by two small converging rivers: the Suzon, which crosses it mostly underground from north to south, and the Ouche, on the southern side of town. Farther south is the côte, or hillside, of vineyards that gives the department its name. Dijon lies 193 miles (310.6 kilometers) southeast of Paris, 118 miles (189.9 kilometers) northwest of Geneva, and 190 km 118 miles (189.9 kilometers) north of Lyon.
The average low of winter is −1 °C (30 °F), with an average high of 4.2 °C (39.6 °F). The average high of summer is 25.3 °C (77.5 °F) with an average low of 14.7 °C (58.5 °F). Average normal temperatures are between 2.3 °C (36.1 °F) and 5.3 °C (41.5 °F) from November to March, and 17.2 to 19.7 °C (63.0 to 67.5 °F) from June to August. The climate is oceanic but with a greater temperature range than closer to the Atlantic coastline.