Extending gloved hands skyward in racial protest, U.S. athletes Smith and Carlos stare downward during the playing of "The Star-Spangled Banner" at the Summer Olympic Games in Mexico City on Oct. 16, 1968.
Arthur Ashe holds his trophy for the U.S. Open singles tennis championship as he stands arm-in-arm with his father, Arthur Ashe Sr., who fights back tears following his son's victory at Forest Hills, N.Y., Sept. 9, 1968. The younger Ashe defeated Holland's Tom Okker in five sets.
Central American asylum seekers, including a Honduran girl, 2, and her mother, are taken into custody near the U.S.-Mexico border on June 12, 2018 in McAllen, Texas.
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The South Korean soccer team poses for a photo prior to the 2018 FIFA World Cup match against Sweden at Nizhny Novgorod Stadium on June 18, 2018 in Nizhny Novgorod, Russia.
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Robert F. Kennedy stands in an open-top convertible and shakes hands with members of a crowd as he campaigns for the democratic Presidential nomination in Detroit on May 15, 1968.
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