sslave and Citizen Claims Tannenbaum’s argument in Slave and Citizen is that the mentally of white men was still in the past. They would never accept a black African American as free men. On the other hand, he argues that the slavery of the new world was totally different than the United States Slavery . In Portuguese Colonial period was lesser rules to slaves the other hand he argues that the constribution of the black slave was helpful to the human society. The slavery in countries like Portuguese. Spain and Cuba there rules toward slavery weren’t as rigid as the united states . the united states way of thinking was that slavery was a social commodity of social and economical power .In tannebaum’S book of Slave and citizen he argues that the hands of slave men were the primary reason of growth to rural cities and agriculture.