How did Africans and African Americans contribute to the growth of New Amsterdam?

Having proved themselves competent workers in Europe and on nascent sugar plantations on the Madeira and Canary Islands off the coast of Africa, enslaved Africans became the labor force of choice in the Western Hemisphere—so much so that they became the overwhelming majority of the colonial populations of the Americas.

ever since wwii tmthey always did hated each other.

answer; the civil right act of 1964;