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The heir to the Austria-Hungarian empire, Franz Ferdinand was assassinated in Sarajevo, Bosnia by members of the Serbian nationalist group, the Black Hand.
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Shortly after the beginning of the German u-boat warfare, the British ship the Lusitania was sunk, killing 1,100 people including 120 Americans
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Following the Zimmermann Note and news of the German's resuming unrestricted submarine warfare, the United States formally declares war and joins WWI.
Plan projects on a visual timeline
Map milestones, phases, deadlines, and key events in one place so the sequence is easier to see and share. Timetoast is a timeline maker for work, school, research, and stories.