Jackie Robinson Day is celebrated in Black history to honor the legacy of Jackie Robinson, the first African American to play in Major League Baseball (MLB). Robinson broke the color barrier in professional baseball when he made his debut for the Brooklyn Dodgers on April 15, 1947. This significant moment in American history marked the end of racial segregation in MLB and paved the way for other Black athletes to follow in his footsteps.

Every year on April 15, all MLB teams honor Jackie Robinson by wearing his iconic number 42 on their jerseys during games. This tradition started in 2004 as a way to pay tribute to Robinson's impact on the sport and his role in advancing civil rights in the United States. Jackie Robinson Day is not only a celebration of Robinson's athletic achievements but also a reminder of the ongoing struggle for equality and justice in sports and society as a whole.