Improved the economy, made many allies and portrayed dictatorship.
Pulled together all the strands of opposition to the czars and led a successful revolution establishing the world's first Marxist nation. He also transformed a medieval country into a modern power and was the first leader of the USSR
Served as the First Secretary of the Central Committee of the Communist Party of Soviet Union and Chairman of the Council of Ministers
His actions and the resulting loss of control by the Politboro caused the republics of Russia, Ukraine,and Belarus to break away completely from the Soviet Union, and form the Commonwealth of Independent states. All the remaining republics, except Georgia, followed suit and the Soviet Union ceased to exist. He was also the final leader of the USSR.
First on Hiroshima on August 6, 1945 and the second on the city of Nagasaki on August 9, 1945. This ended the World War II with Japan surrendering and killed many people instantly and over time.
United States beats the Soviet Union in the Space Race by keeping JFK's promise to have a man on the moon and return him by the end of the decade.
Showed the importance between the conflict of Western Democratic countries led by the US and Eastern Communist countries led by the USSR.