Stanley Engerman and Robert Fogel argued that this institution was less inefficient than it is oftenthought to have been in their book Time on the Cross. George Fitzhugh called it "the best form ofsocialism" in one of his books. This institution derives from "great truth" according to the "Cornerstonespeech." In response to remarks made by William Rives, it was called not 
Stanley Engerman and Robert Fogel argued that this institution was less inefficient than it is oftenthought to have been in their book Time on the Cross. George Fitzhugh called it "the best form ofsocialism" in one of his books. This institution derives from "great truth" according to the "Cornerstonespeech." In response to remarks made by William Rives, it was called not a "lesser evil but a positivegood." In the United States, codes regulating this institution were based on those of rice planters inBarbados. People involved in it took the Middle Passage from Africa to the New World. For 10 points,name this system of forced labor that was outlawed by the Thirteenth Amendment.
Stanley Engerman and Robert Fogel argued that this institution was less inefficient than it is oftenthought to have been in their book Time on the Cross.
American slavery [or equivalent answers]