The Harlem Globetrotters are known for gravity-defying slam dunks, trick shots and improbable long shots. What’s less known is that the razzle-dazzle comedic showmanship was the idea of British-born Jewish businessman Abe Saperstein. Saperstein was a leading figure in black basketball and baseball from the ‘20s to the ‘50s, before those sports were racially integrated. […]