Examlex
_______________ occurs when a pigeon that has been trained to peck at a picture of a circle also pecks at a picture of an oval.
Racism
Prejudice, discrimination, or antagonism directed against someone of a different race based on the belief that one's own race is superior.
Colonies
Territories under the political and economic control of another country, often established during periods of exploration and exploitation.
North American Slave Trade
The transatlantic trade that transported African peoples to North America primarily to serve as enslaved laborers, largely ending in the early 19th century though slavery itself was not abolished until later.
Events in Africa
Refers to significant historical, political, and cultural happenings that have taken place on the African continent.
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