Treaty of Pereyaslav
1654 · Event
Khmelnytsky's Cossacks swear allegiance to the tsar in return for protection against Poland — the moment Moscow's claim over Ukraine begins, disputed ever since.
On these timelines: Eastern Europe & the Balkans, Russia & the USSR, Master
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Around 1654
- English Civil War (1642)
- Reign of Peter the Great (1682)
- Salem witch trials (1692)
- Thirty Years' War (1618)
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- Glorious Revolution (1688)
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- Peace of Westphalia (1648)