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.
Flag of Baden-Württemberg
The flag of Baden-Württemberg was created in 1952, after the merging of the former German states Baden, Württemberg-Baden, and Württemberg-Hohenzollern, that were divided due to different occupying forces after World War II. Historically, the state of Southern Baden used a yellow-red-yellow horizontal triband. The state of Württemberg-Hohenzollern used a black-red horizontal bicolour. The colors were chosen as black and gold, and are defined in the constitution of the state of Baden-Württemberg, adopted on 11 November 1953.