Cause: Europe wanted to come up with a more efficient way to ship goods and not have ships sailing without goods on them.
Effect: the triangular trade was invented
Cause: Slaves were needed in America for work
Effect: Ships took Slaves from Africa to America where they picked up raw materials to ship back to Europe.
Cause: Mass amounts of slaves coming to America
Effect: Centuries of Slavery and problems with civil rights in America.
Cause: Shipping slaves needed to be more Efficient and Europe needed to make more money with sailing
Effect: Triangular trade.