How exactly did Great Britain benefit from the slave trade?
Great Britain gained from the slave trade primarily through the exchange of slaves for other goods or resources. During this time, slaves were not seen as people but instead merely as a valuable resource that could be exchanged for other goods or services.
Great Britain controlled a large portion of the slave market and, with the rise of colonies and plantations in America, slaves were a resource that was highly in demand. The British managed to sell millions of slaves from around the 15th to the 19th century and it became a central aspect of their trade empire.