Frequently the issue is the width of the door jamb. Modern homes -- by which I mean those build from the late 1960s to the present -- tend to have door jambs with fairly common exterior widths. They'll usually be 4 9/16 inches or 6 9/16 inches.
Germany did not just get a new government. The Allies made sure that Germany got a different kind of government. Before1914, the government of Germany was almost a military autocracy; after 1919, it was a parliamentary democracy.
East Germany's new leader, Egon Krenz, called for free democratic elections. But it was not enough to turn the tide and once the Berlin Wall was breached, East Germany disintegrated. On 3 October 1990 the two Germanys merged to form a new united country.