Brandenburg the Province of Brandenburg, again subdivided into the government regions of Frankfurt and Potsdam. In 1881, the City of Berlin was separated from the Province of Brandenburg. However, industrial towns ringing Berlin lay within Brandenburg, and the growth of the region's industrial economy brought an increase in the population of the province. The Province of Brandenburg had an area of and a population of 2.6 million (1925). After World War II, the Neumark, the part of Brandenburg east of the Oder–Neisse line, was transferred to Poland; and its native German population expelled. The remainder of the province became a state
Brandenburg Gate to 1919. The Kaiser granted this honour to the family in gratitude to Ernst von Pfuel, who had overseen the return of the Quadriga to the top of the gate. In addition, the central archway was also used by the coaches of ambassadors on the single occasion of their presenting their letters of credence to council. When the Nazis ascended to power, they used the gate as a party symbol. The gate survived World War II and was one of the damaged structures still standing in the Pariser Platz ruins in 1945 (another being the Academy of Fine Arts). The