I Blame Wilhelm II for Keeping Germans from Enjoying Mickey Mouse

Hard to shorten the toot for the submission title.

Full toot: "Here is why I blame Wilhelm II, the last German Emperor and King of Prussia from 1888 until 1918, for keeping Germans from enjoying Mickey Mouse in the Public Domain." [...] "This means that a treaty from 1892, signed when Kaiser Wilhelm was in power, will cause the copyright protection of Steamboat Willie in Germany to run until 2042"