The history of the Jews in Cologne dates to 321 C.E., when it was recorded in a census decreed by the Emperor Constantine I. As such, it is the oldest European Jewish community north of the Alps. The community quickly established itself in what came to be known as Cologne's Jewish quarter, building its first synagogue by 1040 C.E. The Crusades put an end to peaceful coexistence with Christians in 1096 C.E. Despite the Archbishop's protection many Jews were killed and their synagogue destroyed. The community regained its economic and religious life until about 1300 C.E., when the Christian majority again applied pressure. The community's fortunes improved and worsened a number of times into the 20th century. Before the 1930s, it consisted of 19,500 people. After the end of World War II it h
