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Western colonialism, a political-economic phenomenon whereby various European nations explored, conquered, settled, and exploited large areas of the world. The age of modern colonialism began about 1500, following the European discoveries of a sea route around Africa’s southern coast (1488) and of America (1492). With these events sea power shifted from the Mediterranean to the Atlantic and to the emerging nation-states of Portugal, Spain, the Dutch Republic, France, and England. By discovery, conquest, and settlement,...