Santa Claus, also known as Saint Nicholas or Father Christmas, is a legendary figure celebrated for bringing gifts on Christmas Eve, often depicted as a jolly, white-bearded man in a red suit. His origins trace back to the 4th-century Christian bishop Saint Nicholas of Myra, who was renowned for his secret gift-giving and generosity towards the poor. The familiar modern image of Santa, complete with a sleigh pulled by flying reindeer, significantly developed in the United States during the 19th century. This iconic portrayal was largely cemented by the anonymous 1823 American poem "A Visit from St. Nicholas," which strengthened his association with Christmas. Historically, children in medieval Europe received gifts in Saint Nicholas's honor on December 6th, reflecting a long tradition of festive benevolence.