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The Arab slave trade was the longest yet least discussed of the two major slave trades. It began in seventh century as Arabs and other Asians poured into northern and eastern Africa under the banner of Islam. The Arab trade of Blacks in Southeast Africa predates the European transatlantic slave trade by 700 years.

The Arab slave trade was the longest yet least discussed of the two major slave trades. It began in seventh century as Arabs and other Asians poured into northern and eastern Africa under the banner of Islam. The Arab trade of Blacks in Southeast Africa predates the European transatlantic slave trade by 700 years. [http://atlantablackstar.com/2014/06/02/10-facts-about-the-arab-enslavement-of-black-people-not-taught-in-schools/4/#]