German Democratic Republic: Polity Style: 1949-1990 7 Oct 1949 republic founded by constituting national parliament and putting the constitution into operation 7 Oct 1949 - 2 Oct 1990 Deutsche Demokratische Republik 3 Oct 1990 incorporated into Germany pursuant to the Unification Treaty of 31 Aug 1990 Last updated on: 29 Nov 2023; URL: www.archontology.org/nations/german/ddr/01_polity.php