They were brought to the Americas for slavery.
For slavery
Africans.
to work as slaves in farms
The Europeans brought Africans to the Americas to run sugar plantations thus enslaving them.
This is assuming you are discussing the English colonies. Generally, Africans were imported either from the Caribbean (former slaves brought over by the Spanish) or from West Africa either to work in the Caribbean (if they were brought over from Africa) to work in the sugar cane farms or to work in the English colonies (as Native Americans were not an adequate source for extra manual labor).
The leg of the triangle trade where Africans were brought to America was known as the Middle Passage.
Of all the Africans brought to the New World, sixty percent were brought to Spanish colonies.
12,000,000 Africans were brought to the Americas. Nearly 95% of them went to the Spanish colonies in Latin America and the remainder to the United States.
For slavery
Africans.
You mean the Americas? The slave trade of the US colonies.
to work as slaves in farms
As a source of labor
The Europeans brought Africans to the Americas to run sugar plantations thus enslaving them.
The Dutch.
Portuguese explorers first initiated the transatlantic slave trade in the 15th century, seeking labor for their colonies in the Americas. Subsequently, other European powers including Spain, England, France, and the Netherlands also participated in the slave trade, capturing Africans and forcibly transporting them to work in the colonies.
Spain went into decline because treasures were being brought back from the Americas. This led to neglect of farming, which caused inflation.
Initially slaves were brought to the Americas to work the sugarcane fields