Exploration is the reason why. It started to happen in the mid-1500s.
Brown v. Board of Education of Topeka was a landmark 1954 Supreme Court case in which the justices ruled unanimously that racial segregation of children in public schools was unconstitutional.
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Because they helped stop world War 2 and colonization is the opposite of peace Because it is conquering a country.
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In 1540, Coronado led a major Spanish expedition up Mexico's western coast and into the region that is now the southwestern United States.
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