History Timeline

Archduke and Archduchess visit Sarajevo

Jun 28, 1914

Gavrilo Princip is arrested

Jun 28, 1914

Gavrilo Princip fired two shots

Jun 28, 1914

Gavrilo Pricip fired two shots at Archduke Franz Ferdinand and his wife Sophie.

Austria-Hungary sends ultimatum to Serbia

Jul 23, 1914

Serbia agrees to two of the three terms of the ultimatum

Jul 25, 1914

Austria-Hungary declares war on Serbia

Jul 28, 1914

Russia mobilizes to defend Serbia

Jul 30, 1914

Germany orders France and Russia to stop mobilizing

Jul 31, 1914

Germany declares war on Russia

Aug 1, 1914

France mobilizes to support its Russian ally

Aug 1, 1914

Germany declares war on France

Aug 2, 1914

Germany begins the Schlieffen Plan and attacks France through neutral Belgium

Aug 3, 1914

Germany invades Belgium

Aug 4, 1914

Britain declares war on Germany

Aug 4, 1914

Canada is automatically at war against Triple Alliance

Aug 4, 1914