How could a person become a slave in Ancient Africa?

In some African societies, slaves were treated almost like family members.

When did the slave trade first become a major part of the African economy?

How long was the slave trade a major part of the African economy?

The African slave trade was first established by which group?

Slaves travelling to the Americas were transported in style including luxury lodgings and good food.

When did the European slave trade begin in Africa?

What place was so bad to work that being sent there was almost like getting a death sentence?

Many African merchants and warlords became wealthy through the slave trade.