1918 CE

The Spanish flu pandemic begins, killing an estimated 50 million worldwide; The Armistice of 11 November 1918 ends fighting on the Western Front and concludes World War I; The Dissolution of Austria-Hungary leads to new states such as Czechoslovakia, Yugoslavia, Austria, and Hungary; The German Revolution of 1918–1919 forces Kaiser Wilhelm II to abdicate and creates the Weimar Republic; The Hundred Days Offensive breaks German lines and collapses military resistance; The Murder of the Romanov family ends the Russian imperial dynasty.

In the 1910s, the 20th century.