Flag of Germany
While the use of black-red-gold had been suggested in the Soviet zone in 1946, the Second People's Congress in 1948 decided to adopt the old black-white-red tricolour as a national flag for East Germany. This choice was based on the use of these colours by the National Committee for a Free Germany, a German anti-Nazi organisation that operated in the Soviet Union in the last two years of the war. In 1949, following a suggestion from Friedrich Ebert, Jr., the black-red-gold tricolour was instead selected as the flag of the German Democratic Republic upon the formation of this state on 7 October 1949. From 1949 to 1959, the flags of both West and East Germany were identical. On 1 October 1959, the East German government changed its flag with the addition of its coat of arms. In West Germany, these changes were seen as a deliberate attempt to divide the two Germanys. Displaying this flag in West Germany and West Berlin—where it became known as the (divider-flag)—was seen as a breach of the constitution and subsequently banned until the late 1960s.
Flag of Germany
The gold-red-black flag of the Jena featured prominently at this Wartburg festival. Therefore, the colours black, red, and gold eventually became symbolic of this desire for a unified German state. Austria, in its determination to maintain the status quo, enacted the Carlsbad Decrees of 1819 that banned all student organisations, officially putting an end to the .
In May 1832, around 30,000 people demonstrated at the Hambach Festival for freedom, unity, and civil rights. The colours black, red, and gold had become a well established symbol for the liberal, democratic and republican movement within the German states since the Wartburg Festival, and flags in these colours were flown en masse at the Hambach Festival. While contemporary illustrations showed prominent use of a gold-red-black tricolour (an upside-down version of the modern German flag), surviving flags from the event were in black-red-gold. Such an example is the , the flag flown from Hambach Castle during the festival: a black-red-gold tricolour where the red band contains the inscription (Germany's rebirth). This flag is now on permanent display at the castle.