US president Donald Trump holds a signed pardon for boxer Jack Johnson in the Oval Office of the White House in Washington, DC. Photograph: Olivier Douliery-Pool/Getty Images

US president Donald Trump on Thursday issued a posthumous pardon to boxer Jack Johnson, the first black heavyweight champion, who was jailed a centur(...)

Jack Johnson on July 4th, 1910, before his successful title defense against ‘’The Great White Hope’’ James J. Jeffries in Reno, Nevada. Donald Trump has said that he may offer the former world champion a full pardon. Photo: Sporting News/Sporting News via Getty Images

On December 26th, 1908, Jack Johnson pulverized reigning world heavyweight champion Tommy Burns so severely that police climbed through the ropes in t(...)