Why do countries like France, Spain and the U. S didn't prohibit discrimination based on race or abolish slavery in their constitutions like Haiti's constitution did ?

What was the social class pyramid during the civil war?

What role did radio free europe play in western countries' cold warstrategy?

Which of the following studies is linked most directly to the establishment of the national research act in 1974 and ultimately to the belmont report and federal regulations for human subject protection? a. the public health service tuskegee study of untreated syphilis in the negro male. b. stanford prison experiment (zimbardo).c. tearoom trade study (humphreys).d. the harvard t3 study.