When were the first black people brought to America?how were they treated in the new land ?

问题描述:

When were the first black people brought to America?how were they treated in the new land ?

首批黑人是在什么时候被带到美国的?他们在新大陆上遭到怎样的对待?

第一批黑人在什么时候被带到美国?他们在新土地上遭受了怎样的对待?