History of Cologne was considered a substitute for the German University of Strasbourg, which became part of France along with the rest of Alsace. Cologne prospered during the Weimar Republic and progress was made especially in governance, city planning and social affairs. Social housing projects were considered exemplary and were copied by other German cities. As Cologne competed to host the Olympics, a modern sports stadium was erected at Müngersdorf. Beginning of the 1920s civil aviation was permitted once more, and Cologne Butzweilerhof Airport soon became a hub for national and international air traffic, second in Germany only to Berlin Tempelhof Airport. At
William of Cologne kind may be found in museums and various churches in Cologne, Munich, Nuremberg, Frankfurt am Main and Berlin, and there is a plaque to him in the Walhalla temple. William of Cologne William of Cologne ("Wilhelm von Köln" or "Meister Wilhelm") was a medieval German painter active in Cologne and recorded in city charters between 1370 and 1390. He is regarded as the foremost artist of the Cologne School. No paintings can be attributed securely to him by him, though his name is used as a collective term for a series of altarpieces from late in the fourteenth century, whose