<span><span>The expansion of railroads caused Native Americans to be displaced from their tribal land. </span></span>
They invaded the land of the native americans, treating them in an unfriendly and violent manner when they arrived. The effects of colonization on the native populations in the New World were mistreatment of the natives, harsh labor for them, and new ideas about religion for the spaniards.
The settlers of Roanoke just disappeared and it's still a mystery.
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Answer:
Sharpeville massacre, (March 21, 1960), incident in the Black township of Sharpeville, near Vereeniging, South Africa, in which police fired on a crowd of Black people, killing or wounding some 250 of them. It was one of the first and most violent demonstrations against apartheid in South Africa
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