'''Jack Johnson''', short for "John Arthur Johnson" (March 31, 1878 – June 10, 1946), was a widely celebrated black heavyweight boxing champion, [[patent]]-holder,<ref>https://patents.google.com/patent/US1413121/en</ref> and entrepreneur. He was victimized by a misuse of [[federal]] prosecutorial power, and [[pardon]]ed by President [[Donald Trump]] in 2018. | '''Jack Johnson''', short for "John Arthur Johnson" (March 31, 1878 – June 10, 1946), was a widely celebrated black heavyweight boxing champion, [[patent]]-holder,<ref>https://patents.google.com/patent/US1413121/en</ref> and entrepreneur. He was victimized by a misuse of [[federal]] prosecutorial power, and [[pardon]]ed by President [[Donald Trump]] in 2018. |