I was part of a huge conference last summer in West Africa on the end of the slave-trade in Ghana, and we had representatives we had people participating in that conference from 15 or 16 different African countries.

我去年夏天曾参加过西非的一个大型集会,纪念是加纳奴隶交易的结束,会议上有来自各国的代表,有15或16个非洲国家的代表,参与的这次大型会议

耶鲁公开课 - 美国内战与重建课程节选

This settlement for destitute Africans from England and former slaves from the Americas had become the main base in west Africa for enforcing the British act that abolished the slave trade.

ECONOMIST: Hopeless Africa