Many GM dealers, retirees and active workers aren't very enthusiastic about GM's initial public offering. Joe Raedle/Getty Images hide caption

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Lena Horne (photographed in the 1950s) broke barriers for African-Americans in film and television, as well as on stage. Hulton Archive/Getty Images hide caption

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Mahalia Jackson sings at a Prayer Pilgrimage for Freedom in May 1957. Paul Schutzer; Time & Live Pictures/Getty Images hide caption

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