Statistics for occurrence #1 of “African” in chapter 21 of Benson J. Lossing, Pictorial Field Book of the Civil War. Volume 1.:

...or instructions. The General's action was approved by his Government; and thenceforward all fugitive slaves were considered as contraband of war, and treated as such. On the spot where the first African who was sold as a slave in America first inhaled the fresh air of the New World, the destruction of the system of slavery, which had prevailed in Virginia two hundred and forty years, was thus commen...
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