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Archduke Francis Ferdinand Assassinated
Archduke Franz Ferdinand, heir to the Austrian throne, was assassinated while visiting the Bosnian captial Sarajevo. His and his wife's assassinations led to Austria-Hungary declaring what was expected to be a short war against Serbia. -
Austria-Hungary Declares War on Serbia
Emperor Franz Joseph of Austria-Hungary declares war on Serbia. It was declared one monrth to the day after Archduke Franz Ferdinand of Austria and his wife were killed by a Serbian nationalist. -
Germany Declares War on Russia
Germany mobilizes her armed forces after Russia announces full mobilization of her armed forces. Broke the peace that hung in the balance -
Germany Declares War on France
Germany declared war because they were planning to attack Russia and knew France would honor their alliance with Russia. Germany knew a war on two fronts was inevitable, so they decided to strike first. -
Germany Invades Belgium
Belgium was neutral when Germany declared war. As a result, Britain delcares war on Germany. -
German U-Boat Sinks the Lusitania
128 Americans died. Germany justified this attack by saying that the Lusitania was an enemeny ship carrying amunitions. -
The Zimmerman Note is Discovered
It was a telegram urging Mexico to enter into war against the United States. It was deiscovered and translated by the British. -
Germany Announces Unrestricted Submarine Warfare
Led to America joining the war. Germany did this partially becasue they believed that the United States had jeopordized its neutarlity by acquiescin to the Allied blockade of Germany. -
The United States Declares War on Germany
President Wilson asked Congress for a formal declaration of war after Britain intercepted the Zimmerman telegram. Wilson used propaganda to get soldiers. -
The Russian Monarchy is Overthrown
The Russian government was overthrown the Bolshevik Revolution. The Revolution took place as forces led by Vladimir Ilyich Lenin overthrew the provisional government of Alexander Kerensky.
