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.
The prophet Mohammad was born in Mecca, Saudi Arabia. Hope this helps!
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Politically
Human revolution is a never-ending process of continual self-improvement. It describes a Buddhist way of life that eternally seeks growth and personal development. It is about how much we are growing and improving right now rather than what we have achieved in the past.