How did Jack Johnson and his 1910 heavyweight championship Öght against Jim Jeffries blur line between broader American cultural beliefs and popular culture? – How did Jack Johnson violate American cultural beliefs outside of his boxing? – How did ethnically distinct baseball players like Joe DiMaggio and Hank Greenberg eventually become accepted as “American” heroes, thereby helping the country become more accepting of Italian and Jewish Americans? – How did Jackie Robinson’s entry into major league baseball Öt into broader American trends in 1947?In other words, what was happening in America at the time that allowed this to happen more easily in baseball? – What are some examples of athletes using the popularity of their sporting events as an opportunity to make a political or social statement?