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WWI timeline
Category:
Other
Updated:
17 Jan 2020
Timeline for SS
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Created by
SMS2020 NatalieS
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Events
Archduke Francis Ferdinand was assassinated
Germany said that they would lend Austria-Hungary their full military support in a war with Serbia
Austria-Hungary issued an ultimatum to Serbia
Austria-Hungary broke off relations with Serbia, and both have begun mobilizing their armies.
Austria-Hungary declared war on Serbia
Russia has decided to support Serbia
Germany declared war on Russia
Germany issued an ultimatum to Belgium
Germany marched into Belgium
Europe declared war on Germany
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WWI events
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