Cologne the Central Franconian and Ripuarian dialect areas. The city's famous Cologne Cathedral ("Kölner Dom") is the seat of the Catholic Archbishop of Cologne. There are many institutions of higher education in the city, most notably the University of Cologne ("Universität zu Köln"), one of Europe's oldest and largest universities, the Technical University of Cologne ("Technische Hochschule Köln"), Germany's largest university of applied sciences, and the German Sport University Cologne ("Deutsche Sporthochschule Köln"), Germany's only sport university. Cologne Bonn Airport ("Flughafen Köln/Bonn") is Germany's seventh-largest airport and lies in the southeast of the city. The main airport for the Rhine-Ruhr region
History of the Jews in Cologne and established in the 1st century AD, as the Roman "Colonia Claudia Ara Agrippinensium" in Ubii territory. It was the capital of the Roman province of "Germania Inferior" and the headquarters of the military in the region. Cologne was an important city in Roman times. H. Nissen assumes a much greater population for Roman Cologne than it was in the Middle Ages, when he estimates it was between 30,000–40,000. It is reasonable to assume that the spread of Christianity in any Roman province was preceded and accompanied by the existence there of Jews. The presence of Christians in Cologne in