ww1

Second battle of ypres

Period: Apr 25, 1914 to May 25, 1914

second battle of ypres

Assassination of Archduke Ferdinand

Jun 28, 1914

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

Russia Mobilizes

Jun 30, 1914

Russia Mobilizes

Austria-Hungary declares war on Serbia.

Jul 28, 1914

Austria-Hungary declares war on Serbia.

Germany Declares War on Russia.

Aug 1, 1914

Germany Declares War on Russia.

Britain declares war on Germany.

Aug 14, 1914

Britain declares war on Germany.

Battle of Tannenberg

Period: Aug 26, 1914 to Aug 30, 1914

[Battle of Tannenberg] (www.britannica.com/event/Battle-of-Tannenberg-World-War-I-1914)

First Battle of Marne

Period: Sep 6, 1914 to Sep 12, 1914

First Battle of Marne

Lusitania Sinks

May 7, 1915

Lusitania Sinks

Battle of Jutland

Period: May 31, 1916 to Jun 1, 1916

Battle of Jutland

Battle of Somme

Period: Jul 1, 1916 to Oct 13, 1916

[Battle of Somme] ((https://www.britannica.com/event/First-Battle-of-the-Somme)

First Tanks. .

Sep 15, 1916

First Tanks

The Treaty of Versailles

Jan 10, 1920

The Treaty of Versailles