"The German Democratic Party (German: Deutsche Demokratische Partei, DDP) was a liberal political party in Germany. It was founded in November 1918 by leaders of the ...
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former Progressive People's Party, left-wing members of the National Liberal Party and a new group calling themselves the Democrats (German: Demokraten).
In 1930, the party merged with the People's National Reich Association to form the German State Party." - (en.wikipedia.org 11.08.2021)