South West France (wine region) the grapes to be harvested earlier and the wines to be of a stronger alcohol level. Many Bordeaux wine merchants saw the wines of the "High Country" as a threat to their economic interest and during the 13th & 14th century a set of codes, known as the "police des vins", were established which regulated the use of the port of Bordeaux for wine trading. The "police des vins" stated that no wine could be traded out of Bordeaux until the majority of Bordelais wine had already been sold. This had a devastating effect on the wine industry of the
History of French wine known as chaptalization. Chaptal's treatise was a turning point in the history of wine technology as it synthesized the knowledge current to the beginning of the 19th century. By the mid 19th century, the wine industry of France enjoyed a golden period of prosperity. A new class of consumers, the bourgeoisie, emerged as a strong market for wine and other culinary products. The Gironde region of Bordeaux, in particular, enjoyed a swell of interest from both the Parisian market as well as its steady trade with England. For the 1855 Paris Exposition, Emperor Napoleon III commissioned the Bordeaux merchants to