MLB announces year-long celebration to honor Jackie Robinson
Major League Baseball celebrates 75th anniversary of Jackie Robinson's debut
42 in '47: The Baseball Cards of Jackie Robinson's Dodger Debut – SABR's Baseball Cards Research Committee
All of MLB to wear Jackie Robinson's No. 42 in Dodger Blue on April 15 - ESPN
LEADING OFF: MLB celebrates Robinson 75 years after debut
After Jackie Robinson, MLB integration was halting - The Washington Post
MLB honors Jackie Robinson Day and pays tribute to his barrier-breaking career
When is MLB's Jackie Robinson Day?
Although he is best - Image 2 from Jackie Robinson: 75 Years of Baseball Greatness
Majors celebrate 75th anniversary of Jackie Robinson's debut