Who led the Roman Catholic Church during the Middle Ages?

Brainliestttme : ) why was the launch of sputnik in 1957 important? -most in the u.s. had not thought the soviets were capable of producing satellite technology. - it made clear that the u.s. space program was dominant. - most in the soviet union had not thought the u.s. was capable of launching manned aircraft. - it established the fact that a more dangerous hydrogen bomb could be created.

What pact signed on 1949 reinforce that the united states would not return to an isolationist policy

Which item best completes the chart?