British Library
British Library: Discovering Literature: African Writers and Black Thought in 18th Century Britain
This article describes how four writers, taken from Africa as children and sold into slavery, grew up to write works that challenged British ideas about race, called for African brotherhood, and demanded the abolition of the slave trade.
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Infoplease: Timeline: Key Moments in Black History
A timeline of African-American history from when the first African slaves arrived in Virginia in 1619 up to the present.
Smithsonian Institution
National Portrait Gallery: The Mask of Lincoln: Stephen A. Douglas
A captioned portrait of Stephen Douglas encapsulates his political career and reputation in a few short paragraphs.