Demographics of Cologne and on 1 April 1888 ended in a first major incorporation. The territorial expansion, beginning in the late 19th century, were significant marks for the city's population growth. Major communal reorganizations took place in 1910, 1914, 1922 and 1975. Demographics of Cologne Cologne () is Germany's fourth-largest city and the largest city in the Rhineland. As of 31 December 2011, there were officially 1,017,155 residents. The city is center of the Cologne/Bonn Region with around 3 million inhabitants (including the neighboring cities of Bonn, Hürth, Leverkusen, and Bergisch Gladbach). The walls of Colonia Agrippina covered an area of 96.8 hectares,
History of the Jews in Cologne origin in southern France, but quickly snowballed across the Continent. They formed the background for a murderous pogrom on 23/24 August 1349 in Cologne. There is a letter of the Cologne Council to the council of Strassburg in which the Cologne Council expresses concern about an anti-Jewish incident in Strassburg and warns insistently against an escalation. The Jews and their possessions were protected by letters of protection or consolation, which had to be considered. In the same letter the Cologne Council make clear that they would decidedly protect their own Jews. The council of Strassburg, however, having initially taken a