Before revision: The term became widely used in the late 1950s and early 1960s in the Soviet Union during the Virgin Lands Campaign - a state development and resettlement campaign to turn the lands into a major agriculture producing region
After revision: ()The term became widely used in the late 1950s and early 1960s in the Soviet Union during the Virgin Lands Campaign - a state development and resettlement campaign to turn the lands into a major agriculture producing region