During 18th and 19th century thousands of people were enslaved and made to work in British colonies in West Indies and North America, bringing wealth to British merchants
As many as 3.1 million Africans were transported across the Atlantic in inhumane conditions
Many Africans worked as servants once in Britain which made their legal status unclear
Many Africans later fought for British in Americas war for independence, in return they were offered freedom and many came to Britain