The Soviet Union tightened its grip on eastern european nations and Stalin refused to let go, and economic recovery in E. Europe proceeded along the lines that appealed to the Soviets - political and social changes were LARGELY influenced by the changes made in the Soviet Union.
If that didnt answer your question and you were looking for just a one worded answer, its the Soviet union
Everyone who has endorsed him
An early traveler to China was B. Marco Polo
Common Sense was a pamphlet written by Thomas Payne - C is the Answer