That mission seems frivolous floating the paper, to the American slave trade freely decide their destiny is totally different.

那团看来轻飘飘的纸捲，给了美国黑奴自由，决定了他们完全不同的命运。

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But as the foreign slave trade was cut off the domestic American slave trade absolutely boomed.

但当海外奴隶贸易被终止之后,美国国内的奴隶交易反而蓬勃发展起来

耶鲁公开课 - 美国内战与重建课程节选

About two-thirds of those went by outright sale, by financial speculation, in now a growing huge American business of the domestic slave trade.

大约有三分之二的人都被,金融投机所买断,被投入一个日益庞大的,国内奴隶贸易的美国商业市场

耶鲁公开课 - 美国内战与重建课程节选

FleetBoston's ancestor, for instance, profited from financing the slave trade when it was already illegal under American law.

ECONOMIST: Slavery and the law

"Lives For Sale" is the investigative documentary that explores how each year, nearly 20, 000 people leave their countries for the American dream only to end up in a modern slave-trade nightmare.

NPR: Film Looks at Immigrants Caught in Slave Trade

The bluesy scales and shuffling rhythms American rock fans grew up on also exist in West African traditional music, via the history of the Atlantic slave trade.

NPR: Vieux Farka Toure, Justin Adams & Juldeh Camara: Rock 'N' Roll Goes To West Africa