Answer:
a constitutional arrangement by which power is equally distributed between a central government and state governments
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<span>According to William H. McNeill, one way the plague affected China after 1331 was that it reduced the population drastically and led to economic depression. </span>
Christopher Columbus is the explorer who is credited for discovering America. Of course, there were already people living in America at the time who we call Native Americans. There even was a European, Leif Ericsson, who had been to the Americas before. However, it was Columbus' voyage that started the exploration and colonization of the Americas.