- February 28, 1609 - Vasili IV of Russia ceded border territory to Sweden in exchange for military aid against the government of False Dmitry II.
- February 13, 1619 - Feodor Romanov, Michael's father, was released from Polish prison and allowed to return to Russia.
- February 22, 1711 - Government reform of Peter the Great: Peter established the Governing Senate to pass laws in his absence.
- February 27, 1768 - Repnin Sejm: Delegates of the Sejm adopted a treaty ensuring future Russian influence in Polish internal politics.
- February 27, 1919 - Lithuania was absorbed into the Socialist Soviet Republic of Lithuania and Belorussia.