Arch duke Franz Ferdinand, heir to Austria Hungary's throne, and his wife, Sophie, are assassinated by Serbian nationalist Gavrilo Princip while the couple were visiting Sarajevo
Austria Hungary declares war on Serbia
Germany declares war on Russia
Germany declares war on France
Britain declares war on Germany
Austria Hungary declares war on Russia and Serbia declares on germany
Woodrow Wilson announces America will stay neutral
Volunteers arive at Valcartier camp
First battle of the Marne
U.K. announces that the North Sea is a military area.
An unofficial truce is called on Christmas
Germany declares war zone around Britain
Canadian Division moved to Ypres Salient
Second battle of Ypres
Battle of St.Julien
In flanders fields poem written John McCrae of C.E.F