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.
Swastika
On 14 March 1933, shortly after Hitler's appointment as Chancellor of Germany, the NSDAP flag was hoisted alongside Germany's national colors. As part of the Nuremberg Laws, the NSDAP flag – with the swastika slightly offset from center – was adopted as the sole national flag of Germany on 15 September 1935.