Chancellor of Germany was usually held by Archbishops of Mainz. The title was, at times, used in several states of German-speaking Europe. The modern office of chancellor was established with the North German Confederation, of which Otto von Bismarck became "Bundeskanzler" (meaning "Federal Chancellor") in 1867. With the enlargement of this federal state to the German Empire in 1871, the title was renamed to "Reichskanzler" (meaning "Chancellor of the Realm"). With Germany's constitution of 1949, the title of "Bundeskanzler" was revived. During the various eras, the role of the chancellor has varied. From 1867 to 1918, the chancellor was the only responsible minister
Chancellor of Germany (1949–present) in 1871, the office became known in German as "Reichskanzler" ("Reich Chancellor", literally "Chancellor of the Realm"). Since the adoption of the current constitution of Germany (the "Basic Law" or "Grundgesetz") in 1949 the formal title of the office is once again Bundeskanzler (Federal Chancellor). In the now defunct German Democratic Republic (GDR, East Germany), which existed from 7 October 1949 to 3 October 1990 (when the territory of the former GDR was reunified with the Federal Republic of Germany), the position of chancellor did not exist. The equivalent position was called either Minister President "(Ministerpräsident)" or Chairman of the