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American writer, abolitionist and orator Frederick Douglass edits a journal at his desk, late 1870s. Douglass was acutely conscious of being a literary witness to the inhumane institution of slavery he had escaped as a young man. He made sure to document his life in not one but three autobiographies. Hulton Archive/Getty Images hide caption

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Hulton Archive/Getty Images

Gen. John F. Campbell, the top U.S. commander in Afghanistan, speaks during a ceremony in Kabul on Aug. 26. Campbell is overseeing the U.S. drawdown in the country after 13 years of war. Massoud Hossaini/AP hide caption

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Massoud Hossaini/AP

Afghanistan's Way Forward: A Talk With Gen. John Campbell, Decoded

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After training, teachers and other staffers in South Dakota could choose to bring guns with them to school if their districts want to set up "sentinel" programs. Jim Urquhart /Reuters /Landov hide caption

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Jim Urquhart /Reuters /Landov

A drawing depicts the death of St. Valentine — one of them, anyway. The Romans executed two men by that name on Feb. 14 of different years in the 3rd century A.D. Hulton Archive/Getty Images hide caption

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Hulton Archive/Getty Images