Back in 2004, then-commissioner Bud Selig announced that MLB would celebrate Jackie Robinson Day on every April 15, commemorating the day Robinson debuted back in the majors back in 1947.

Jackie Robinson Day History: Why do players wear No. 42? April 15 is significant because this was the day that Robinson made his MLB debut all those years ago. Back in 1947, he became the very ...

My favorite signature stylings of the Jackie Robinson Day Cortez's are the "4" and "2" on the back. With Major League Baseball retiring the number for everyone, 42 has become all the more iconic.