When the Constitution was written which citizens have the right to vote

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.

Apex plz i’m almost done if i get this all right

Which factor has played the most important role in changing the way history is studied over time?