Conversation so far:
were there earlier forms of the german flag why have the changes been made
The Holy Roman Empire had an imperial banner: a black eagle on a golden background. In 1778 the Fürstentum Reuß-Greiz adopted the flag in its modern tri-color arrangement.
do the colors on the the german flag
Since the mid-19th century, Germany has two competing traditions of national colours, black-red-gold and black-white-red.
when did the black-white-red germany flag appear
The colours black-white-red appeared for the first time only in 1867, in the constitution of the North German Confederation.
where did the original colors black red and gold for germany come from
The black-red-gold flag was used to symbolize the movement against the Conservative European Order that was established after Napoleon's defeat.

Question: what are the variants of the flag
Self-contained rewrite: what are the variants of germany's flag