London had a monopoly on the slave trade until the late 17th century. From then on Liverpool in the North West and Bristol in the South West were the two ports most heavily involved
Rhode Island
slaves were the most important things in the slave trade
The most important reason that the slave trade thrived was economic; the shipping companies and slave dealers made money in obtaining and selling slaves, and the slave owners used slaves as a "free" labor force to earn money for themselves.
Sugar..
I believe it is Rhode Island. The two most known ports were in charleston, sc and newport, RI.
The main BRITISH ports involved in the slave trade were London, Bristol and Liverpool.
Rhode Island
The slave trade was carried out from many British ports, but the three most important ports were London (1660-1720s), Bristol (1720s-1740s) and Liverpool (1740s-1807), which became extremely wealthy.
Spanish people benefited most from the Manila galleon trade.
Ports such as Bristol, Liverpool and Glasgow sent out many slave ships each year, bringing great prosperity to their owners: 1792 was the busiest slave trading year for Britain, when 204 ships left to carry slaves from Africa to the Americas
Europe
italy
the Europeans benefited most from the triangular trade because the enslaved the Africans and got the money and merchandise
slaves were the most important things in the slave trade
The colonists were all to to blame for the slave trade
The most country that benefits from trades is New York.
Italy