1965438+In June 2004, the crown prince of Austria-Hungary was assassinated in Sarajevo, which became the fuse of World War I.

1965438+On July 28th, 2004, the Austro-Hungarian Empire went to war against Serbia and the First World War broke out.

1965438+On September 5, 2004, the Battle of the Marne River started.

1917165438+ October (Russian calendar 65438+October Revolution)

1918165438+1October 1 1 World War I ended.