Cologne

The Roman general Agrippa established a colony on the site about 38 BCE. This was the birthplace of Julia Agrippina, who was the wife of the emperor Claudius, and it was at her request that the title of Roman colony was conferred upon the town in 50 CE. It was named Colonia Claudia Ara Agrippinensium, shortened to Colonia; later it was made the headquarters of the governor of Lower Germany.

A Christian community existed in Cologne probably as early as the 2nd century, and the town is first mentioned as a bishopric in 313. Charlemagne made it an archbishopric in the late 8th century; by the 10th century the archbishop dominated the city, receiving a wide range of tolls, customs duties, and other payments. The city's industry and trade grew during the Middle Ages, especially from about the 10th century, and increasingly bitter conflicts developed between the wealthy merchants and the archbishop. The former sought commercial and political freedom, the latter the preservation of his temporal power, which was augmented from the 13th century when the archbishop became one of the electors privileged to choose the German king. It was not until the Battle of Worringen, in 1288, that the archbishop was finally defeated, and the city of Cologne secured full self-government. From that time, Cologne was in fact a free imperial city, although it was only officially recognized as such in 1475.

Until the end of the 14th century, the government of the city was in the hands of the wealthy patricians, but in 1396, after a bloodless revolution, a new municipal constitution was established under which the 22 branches of the guilds became the basis of the government, for they elected a council that had power over all internal and external affairs.

This medieval period was a splendid one for Cologne. It was a prominent member of the mercantile Hanseatic League, and its merchants had probably the most extensive connections and the most varied trade of all the German towns. Crafts included textile manufacturing, bookmaking, leatherworking, enameling, and metalworking, the work of Cologne's goldsmiths being particularly fine. The arts and religion flourished there also. Three of the greatest Roman Catholic scholars and theologians of medieval Scholasticism - Albertus Magnus, Thomas Aquinas, and John Duns Scotus - all taught in Cologne's schools. After the Thirty Years' War (1618–48), however, the city declined. As late as 1794, when the French occupied Cologne, public Protestant services were still banned, and the city has remained predominantly Roman Catholic. The Jewish community, which had existed from the time of Constantine the Great, was expelled in 1424, and until 1794 Jews were forbidden to remain overnight in the city.