[African population in history].
Yang
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D000349:Africa; D018595:Colonialism; D003710:Demography; D003906:Developing Countries; D004641:Emigration and Immigration; D011056:Political Systems; D011057:Politics; D011153:Population; D011157:Population Dynamics; D011158:Population Growth
Africa; Colonialism; Demographic Factors; Developing Countries; International Migration; Migration; Political Factors; Political Systems; Population; Population Dynamics; Population Growth--changes