Germany can change very fast. On 28 October 2010, the Bundestag extended the running time of the nuclear power plants. On 11 March 2011, the disaster in Fukushima began. Three days later, the government announced a three-month moratorium for the seven oldest plants and for Krümmel. On 30 June 2011, the Bundestag voted with 513 of 600 votes to end nuclear power. Eight reactors lost their licenses on 6 August 2011. German unification was faster still. The Berlin Wall opened on 9 November 1989. The D-Mark came to East Germany on 1 July 1990, and the country was united on 3 October 1990.