Wrong.... The losing tribes became the Slaves of the winning Tribes and subsequently were sent to the coastal ports to be traded to the White Slave Traders. Lets not forget that a very large % of them died en route to the Coastal ports.
Slavery was a big business in Africa a very long time before some greedy Whites discovered it. The African Slave Trade started as early as the 9th century, especially between Muslim traders and western African kingdoms as well as East Africa. Muslims were selling goods to the African kingdoms and the African kingdoms were paying with their own people.
When the Whites arrived with their boats, the Slaves were there already, just waiting to be sold, put onto the boats and sent to the Americas. Sort of like a Drive-in restaurant. So basically Muslims and Blacks were the first to start the Slave trade and therefore they are just to blame, if not even more than the Whites.
The Barbary Pirates on the other hand did not pay for the White Christian Slaves. They raided coastal villages along the Mediterranean coast as well as adjacent Islands, looted the villages, then captured and kidnapped the men, women and children, while leaving death and destruction behind, since many villagers tried to stop them.
Then they took the slaves back to the Slave markets in North Africa where they then traded them. Most of the women and children became Sex Slaves while the men had by far the worst fate for a Barbary slave as they were assigned to man the oars of galleys. Rowers were shackled where they sat, and never allowed to leave. Sleeping, eating, defecation and urination took place at the seat.
Do they teach this in US schools? I'll bet not. Does Hollywood make any films or series about this? I don't remember ever seeing anything about it.
In 1981 the country of Mauritania became the last country to abolish slavery, although it was only officially criminalized in 2007, yet the practice still goes on today.
https://www.theguardian.com/world/2012/aug/14/slavery-still-shackles-mauritania
https://violenceagainstwhites.wordpress.com/white-slaves/
People from virtually every major culture, civilization, and religious background have made slaves of their own and enslaved other peoples. So, to continually blaming slavery as something invented by Whites is ridiculous and to ask for reparations is even more ridiculous.
Finally, I want to thank you for your post, which I thought was very interesting, because at least you are aware that slavery is not a one way street as so many try to make it. What people did centuries ago has nothing to do with today's generations.