It was basically a the transportation of African slaves to America. This occurrance took place between the 16th and the 19th century.
In this trade slaves were sold to Western Europeans which then resold the slaves to the Americans. The first ones to engage in this "programme" where the Portuguese, who took slaves to Brazil for the first time about 26 years they arrived there in 1500.
Hope it helped,
BioTeacher101
Is the role of history in the untied states of america
Marx and Engels ofter referred to the “first” mode of production
