Europeans left the people slaving on site and only brought over the products. They probably wanted everything to happen out of sight and not risk slaves rioting at home.
Yup, and slavery was already illegal in much of the christian Europe at the start of this timeline. Serfdom (which primarily affected european peasants) would however continue well into the 1800s.
Never thought about how few slaves were brought to Europe. I guess there was no that big need for workforce?
Europeans left the people slaving on site and only brought over the products. They probably wanted everything to happen out of sight and not risk slaves rioting at home.
https://en.m.wikipedia.org/wiki/Atrocities_in_the_Congo_Free_State
Yup, and slavery was already illegal in much of the christian Europe at the start of this timeline. Serfdom (which primarily affected european peasants) would however continue well into the 1800s.