Bohdan Zynoviy Mykhailovych Khmelnytsky , was the Hetman of the Zaporozhian Host of the Crown of the Kingdom of Poland in the PolishLithuanian Commonwealth . He led an uprising against the Commonwealth and its magnates which resulted in the creation of a Ukrainian Cossack state. In 1654, he concluded the Treaty of Pereyaslav with the Tsardom of Russia.
The latest biography of Khmelnytsky by Smoliy and Stepankov, however, suggests that it is more likely he was born onNovember and was baptised onNovember .
Source: Wikipedia