Ivan Samoylovych was the Hetman of Left-bank Ukraine from 1672 to 1687. His term in office was marked by further incorporation of the Cossack Hetmanate into the Tsardom of Russia and by attempts to win Right-bank Ukraine from Poland–Lithuania.

The Ruin is a historical term introduced by the Cossack chronicle writer Samiilo Velychko (1670–1728) for the political situation in Ukrainian history during the second half of the 17th century.