A royal colony is a colony that is a colony ruled by appointed officials. In United States history, New York was a royal colony governed by a council and a royal governor appointed by the British Crown. An administrator that has the overall rule over a land. A proprietary colony is a colony in which one or more private land owners retain rights that are normally - and in time always became - the privilege of the state. a colony ruled or administered by officials appointed by and responsible to the reigning sovereign of the parent state.
Answer:The Soviet Leader during the presidencies of Eisenhower and Kennedy was Nikita Krushchev - he was the leader of Soviet Union for 11 years form 1953 till 1964.