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Assassination of Archduke Francis Ferdinand
Archduke Francis Ferdinand is assassinated in Sarajevo, the capital of Bosnia. -
Austria-Hungary declared war on Serbia
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Mobilization in Russia
Russia begins mobilization and readying troops for war to protect Serbia. -
Germany declared war on Beligium
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Germany invades Belgium & Britain joins war
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Ottoman Empire (Turkey), joins war on central powers
(end of 1914 date not specified) -
Italy joins Allies
(spring of 2015 date not specified) -
Chlorine gas released
German army releases chlorine gas for th first time in allied trenches (April 1915 day not specified) -
Bulgaria joins central
(October 1915 day not specified) -
Romania joined allies
(date not specified) -
Battle of Somme
British lose 20,000 deaths in a single day (date not specified) -
Czar is overthrown
The Russian Revolution overthrows Czar and is changed into a republican government
day not specified -
Central powers agree to a truce with the allies
day not specified -
Germany signs the treaty of Versailles