In 1914, Franz Ferdinand, Archduke of Austria, was assassinated by a Serbian nationalist, sparking World War I.
In 1919, the Treaty of Versailles was signed, ending World War I.
In 1950, North Korean troops captured Seoul.
In 1965, the United States launched its first major military offensive in Vietnam.
In 2004, the U.S.-led coalition in Iraq transferred sovereignty to an interim Iraqi government.