Flag of Germany
When Heinrich XI, Prince Reuss of Greiz was appointed by Joseph II, Holy Roman Emperor to rule the then-new Principality of Reuss-Greiz on 12 May 1778, the flag adopted by the "Fürstentum Reuß-Greiz" was the first-ever appearance of the black-red-gold tricolour in its modern arrangement in any sovereign state within what today comprises Germany – the Reuss elder line that ruled the principality used a flag whose proportions were close to a "nearly square"-shape 4:5 hoist/fly ratio, instead of the modern German flag's 3:5 figure.
Flag of East Germany
Thus, the West (FRG) and East Germany (GDR) had the same national flag. The East, however, led only in the first ten years of its existence. During this time the FRG competed in color with the identical design of the GDR. On 1 October 1959 the GDR added their national emblem, "hammer and compass surrounded by a garland of corn" in the flag as so as to create a distinction to the flag of the Federal Republic. The emblem was a symbol of the alliance of between workers, farmers, and intelligentsia.