How did columbus's arrival in the america's affect native americans, africans, and europeans?

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.

Why did the fighting go on after the armistice was signed

How did the declaration of sentiments women’s movement