And then they started trading slaves among themselves and finally buying and selling them.

From 1735, Elmina became the preferred spot to trade slaves.

Brigham Young initially told the Indians that it was against the law to trade slaves.

Even the Mexicans bought and traded slaves once.

The practice was rejected, as was trading such slaves.

The Touareg traded salt and slaves into the 20th century, historians say.

There was only one commodity in which the Courtney brothers refused to trade: human slaves.

Rather than trading slaves back to Muslim merchants, there was an emerging market for agricultural workers on the plantations.

The inland tribe traded slaves and ivory to the river people and were familiar with their jargon.