the Sherman antitrust act in 1980 made trust and monopolies illegal.
"A library outranks any other one thing a community can do to benefit its people. It is a never failing spring in the desert."- AndrewCarnegie
There has always been slavery inside Africa.
(Sadly slavery is still in Africa today.)
Europeans sold goods that the kingdoms wanted.
The kingdoms kept pushing further and further into the interior.
This created a continuous cycle.
Whites were sold into slavery in Africa also.
(They were captured from barbery pirates in North Africa.)