I suppose you make a reference to colonial slavery. Colonial Slavery has existed until the elite found a better and more effeficient way to make people working and this new way was also more compatible with ethic standards. read more
The trans-Atlantic slave trade lasted a very short time. Only about 200 years. Slavery was endemic in the Old World since the dawn of time. Africans, Europeans, Asians, they all practised slavery for thousands of years. read more
Best Answer: Because there was a market. Economically speaking, people will continue to sell things as long as people will continue to buy them. read more