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Assissination of Austria-Hungary Archduke
Archduke Franz Ferdinand of Austria-Hungary is assassnated by Gavrilo Princip. -
Austria-Hungary declares war on Serbia
Austria-Hungary declares war on Serbia in retaliation of the assassination -
Period: to
WWI
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First use of poisonous gas
Xylyl bromide was first militarized on January 3rd, 1915 in Ypres, Belgium -
British Lusitania Sinking
German U-Boat sinks the British Lusitania, causing the death of 1198 including 128 Americans -
US declares war on Germany
In January 1917, Germany renewed its policy of unrestricted submarine warfare that it had abandoned in 1915 after the sinking of the Lusitania. All ships trading with Britain, including those of neutral countries such as the United States would be targets for their submarines and would be sunk without warning -
Period: to
Hundred Days Offensive
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Armistice
Germany is required to surrender several military units and their areas of occupation in East Africa are to be abandoned. Everyone must participate in a 30-day cease fire. -
Armistice Signing
The signing of the Armistice with Germany (effective 6 hours later). -
Treaty of Versailles