In relation to this question, here are the two salient dates.
1619 The first African slaves arrive in Verginia.
1808 Congress bans the importation of slaves from Africa.
Please note that be the Declaration of US Independance was in 1776,
england
indentured servants
england
england
england
England - apex
England - apex
England - apex
England - apex
europe
As indentured servants
The British thought of the American colonies lower than pesants. They saw them more as indentured servants.
The colonist recruit indentured servants because they needed the labor to begin the building of the American colony. It also helped build up the colonies population.