Jackie Robinson Day is celebrated in Black history to honor the legacy of Jackie Robinson, who broke the color barrier in Major League Baseball on April 15, 1947. Robinson became the first African American player to play in the major leagues in the modern era, signing with the Brooklyn Dodgers and paving the way for future generations of Black athletes. On Jackie Robinson Day, all MLB players wear his iconic number 42 in honor of his contributions to the game and his impact on racial equality in sports. The day also serves as a reminder of the challenges and discrimination Robinson faced throughout his career, showcasing his courage, resilience, and determination to break down racial barriers in sports and society as a whole.