The Ruin is a historical term introduced by the Cossack chronicle writer Samiilo Velychko for the political situation in Ukrainian history during the second half of the 17th century.
Division of Ukrainian lands according to the Treaty of Andrusovo (1667)
Hetman Petro Doroshenko
Ivan Samoylovych
Mention of "Ukrainian State" (Polish: Ukrainskie Panstwo) in the text of the Treaty of Buchach
Mykhailo Stepanovych Khanenko was a Ukrainian Cossack military leader, and nominal hetman of Right-bank Ukraine from 1669 to 1674 in rivalry with Petro Doroshenko during The Ruin.