The two main factors that influenced the development of humans were "3 environment and geography, since these two factors greatly determine if humans who lived there could domesticate plants and animals.
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Duke Power Co., case in which the U.S. Supreme Court, in a unanimous decision on March 8, 1971, established the legal precedent for so-called “disparate-impact” lawsuits involving instances of racial discrimination.
Slaves, because when the slaves came over to the U.S.A. people among the states would fight and that could cause them to split which added more and more states.
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More recent research suggested that the Nazca Lines' purpose was related to water, a valuable commodity in the arid lands of the Peruvian coastal plain. The geoglyphs weren't used as an irrigation system or a guide to find water, but rather as part of a ritual to the gods—an effort to bring much-needed rain.
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