The Breakthrough: In May 1947 Jackie Robinson proved he belonged in the bigs - Sports Illustrated
Jackie Robinson Day, when MLB players can wear No. 42
Jackie Robinson Day 2022
1947: Robinson breaks baseball color barrier - Mississippi Today
Robinson debuts five days after signing with Dodgers
Jackie Robinson Day: Why MLB should honor radical activism - Los Angeles Times
Being first — how Jackie Robinson integrated professional baseball - SaportaReport
Jackie Robinson, Biography, Statistics, Number, Facts, & Legacy
Jackie Robinson in 1947: Debut with the Dodgers – Society for American Baseball Research
OAH Jackie Robinson Day and the Decline of Black Baseball