The Diamondbacks celebrate Jackie Robinson's impact in breaking barriers in baseball and inspiring necessary change in the sport and our nation.

Jackie Robinson Day is held every year on April 15 ... will be sung by the choir from Pilgrim Rest Baptist Church in Phoenix. Raven Gibson will throw the ceremonial first pitch.

Without Jackie Robinson, the game of baseball and the spirit it embodies would not look or feel nearly the same as it does ...

But then again, there haven't been many people like Jackie Robinson. "A life is not important," he said, "except in the impact it has on other lives." Jackie Robinson led the way for generations ...

"Jackie Robinson's impact was greater than just that of baseball. He was a transforming agent and in the face of such hostility and such meanness and violence, he did it with such amazing dignity.