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Event

World War II

1 September 1939 – 2 September 1945

Wars

The deadliest conflict in history

Icon: Parallel Timeline · Parallel Timeline contributors · License: CC0-1.0

Connections

caused by World War I — Treaty of Versailles and its aftermath
led to Cold War
led to United Nations founded — To prevent another world war

Part of

World wars

Sources

Wikipedia: World War II (accessed 2026-09-28)