Jackie Robinson Day: 4 Facts About His Jersey No. 42, Now Retired in MLB

An oral history of the night baseball stopped to retire No. 42 forever - ABC7 New York

The only day MLB players can wear No. 42? Jackie Robinson Day

National Museum of African American History and Culture Displays Jackie Robinson's Jersey in Honor of 75th Anniversary of Robinson's Major League Debut

Jackie Robinson — Articles

Jackie Robinson, Biography, Statistics, Number, Facts, & Legacy

Jackie Robinson: Before the Dodgers, a 4-sport star at UCLA

The History of 42, Before 42 Made History

Cards wear No. 42 on Jackie Robinson Day

Shortstops: The guts not to fight