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Bloody Sunday massacre in St. Petersburg, Russia, of peaceful demonstrators marking the beginning of the violent phase of the Russian Revolution of 1905. -
A young Bosnian Serb had one plan to free his people from the monarchy of Austria-Hungary: kill Archduke Franz Ferdinand, heir to the crown. -
The Austria-Hungary declaration of war on Serbia in 1914 marked the beginning of one of the deadliest conflicts in human history, World War I. -
Germany declares war on Russia, ostensibly in response to Russian mobilizatio. With this one, they officially entered WW1.