Flag of Germany
With the formation of the short-lived Weimar Republic after World War I, the tricolour was adopted as the national flag of Germany. Sixteen years later following World War II, the tricolour was again designated as the flag of both West and East Germany divided states in 1949. The two flags were identical until 1959, when the East German flag was augmented with the coat of arms of East Germany. Since reunification on 3 October 1990, the black-red-gold tricolour has become the flag of a reunified Federal Republic of Germany.
Imperial law regarding the introduction of a German war and civil ensign
On July 31 the National Assembly in Frankfurt decided on a law, but only on November 12 the Imperial Regent signed it. Regent Archduke John of Austria had postponed the law because the great powers had not recognized the Empire. Great Britain threatened to consider the German flag as a pirate flag. Still, constitutional historian Ernst Rudolf Huber explains, the flag law was absolutely valid legally. Because of the general popularity of the coulours the imperial constitution of March 1849 lacked a paragraph on the flag.