A reunification treaty was signed on 31 August 1990, and was overwhelmingly approved by both parliaments on 20 September 1990. At midnight Central European Time on 3 October 1990, East Germany officially ceased to exist, and its territory joined the Federal Republic as the five states of Brandenburg, Mecklenburg-Vorpommern, Saxony, Saxony-Anhalt and Thuringia. These states had been the original five states of East Germany before being abolished in 1952, and had been reconstituted in August. East and West Berlin were reunited as a city-state which became the capital of the enlarged Federal Republic.