By Zesha Saleem Researchers believe they have discovered an American slave trafficking vessel that’s been underwater for nearly 200 years. In waters between Rio de Janeiro and Sao Paulo, the Carmango was reportedly found after a breakthrough thanks to a local fisherman. It was one of many American ships involved inillegal trafficking, taking enslaved Africans to Brazil in the 1850s. Between 1831 and 1850, American-made ships brought approximately 430,000 enslaved Africans to Brazil — nearly as many as were shipped to the United States during its entire history of slavery. Half of all enslaved …