World War 1

Assassination of Archduke Ferdinand

Jun 28, 1914

{Archduke Ferdinand}(https://www.history.com/news/the-assassination-of-archduke-franz-ferdinand-100-years-ago)

Austria-Hungary declares war on Serbia.

Jul 28, 1914

Austria-Hungary declares war on Serbia

Germany declared war on Russia

Aug 1, 1914

[Germany declared war on Russia](https://www.loc.gov/rr/news/topics/ww1declarations.html0

japan declares war on germany

Aug 23, 1914

japan declares war on germany