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The United Socialist Soviet Republics (USSR) were founded on this date, December 30, 1930.
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The USSR is recognized by the United States as an independent nation.
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The USSR is admitted to the League of Nations.
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USSR and Nazi Germany conclude a non-aggression pact; Germany invades Poland, triggering World War II.
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.