The procuring, transporting, and selling of human beings as slaves, in particular the former trade of black Africans as slaves by European countries and America
Arab Muslims raided and traded for black African slaves in West Africa, sending thousands to North Africa, parts of the Middle East and southern Europe
Later, kings like Mansa Musa, raided their weaker neighbours and sold their captives as slaves, also keeping slaves of their own to use as soldiers and workers in gold mines and on farms
Some American states, such as Virginia, Alabama, Mississippi, Louisiana and Texas, had huge cotton plantations, where slave overseers were often very cruel
The South had huge plantations and needed many more workers than the North, plantation owners preferred workers with no claim to the crops, and as slaves were property the owners had power to treat them as they wished
Corn, pigs and other types of food were provided for slaves, but many died due to overwork and cruel punishment as the owners didn't care as long as there was a good supply of slaves
Slaves were often bought from African slave traders, who were powerful men bartering or exchanging household slaves for goods, but slaves were also hunted and captured against their will by the European traders