American sprinters Tommie Smith and John Carlos, along with Australian Peter Norman, during the award ceremony of the 200 m race at the Mexican Olympic games. During the awards ceremony, Smith (center) and Carlos protested against racial discrimination: they went barefoot on the podium and listened to their anthem bowing their heads and raising a fist with a black glove. Mexico City, Mexico, 16 October 1968. Photo: Angelo Cozzi (Mondadori Publishers). Public Domain. Source: Wikimedia Commons.