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20th century

20th century: 1900 - 1999  

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...History 1 1940s Politics Protest and rebellion North America Canada 1948 1948 Daniel Malan moves swiftly to reinforce apartheid, South Africa's already existing system of racial segregation apartheid The Concise Oxford Dictionary of Politics 3 1940s Politics Persecution and repression Social and domestic Africa South Africa South Africa (republic) Society c. 1948 1948 US psychologist B.F. Skinner trains laboratory rats to use their brains in his 'Skinner box' Skinner box The Oxford Companion to the Mind 2 1940s Science Life sciences North America United...