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| Birmingham, Alabama, May 3, 1963. AP Photo by Bill Hudson. (Click all images to enlarge) |
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| Ferguson, Missouri, Aug. 11, 2014. Photo by Whitney Curtis for the New York Times. |
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| Tiananmen Square, June 5, 1989. AP Photo by Jeff Widener. |
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| Ferguson, Missouri, Aug. 13, 2014. Photo by Mario Anzuoni/REUTERS. |
