What was the reasons behind the development of slavery in the new world?

Africans were the immigrants to the British New World that had no choice in their destinations or destinies. The first African Americans that arrived in Jamestown in 1619 on a Dutch trading ship were not slaves, nor were they free. They served time as indenterd servants until their obligations were complete hope this helps

The colonies needed a large workforce for the crops that they were growing, such as tobacco and rice.