World Basketball Day is observed worldwide every December 21 to commemorate the first game of basketball, which was played on December 21, 1891, by James Naismith at YMCA International Training School in Springfield, Massachusetts. The day highlights the contributions of basketball and sports in general to sustainable development, international cooperation, and mutual understanding. Events held on this day include charity matches, exhibition games, demonstrations, and masterclasses, aimed at promoting basketball as an inclusive sport for all ages and skill levels. The United Nations General Assembly designated this observance in 2023, recognizing basketball's role in empowering youth, women, girls, and persons with disabilities. Since its inception, basketball has grown to be played by at least 450 million people globally and has been part of the Olympic program since 1936.