National For Twelves Day is celebrated on April 12 each year, primarily in the United States, to honor the significance of the number 12, particularly in relation to football fans, referred to as the "12th man." The day recognizes the loyalty and support of fans for their teams, emphasizing their role as an integral part of the sport. The number 12 holds various cultural and mathematical significance, appearing in contexts such as the 12 months of the year, 12 signs of the zodiac, and religious references like the 12 Apostles in Christianity. Activities on this day may include appreciation events for fans and celebrations that highlight the connection between the number 12 and sports. The day was established by the Honolulu Sea Hawkers, reflecting the deep affection for the number among athletes and fans alike.