Dec, 6 marks the Catholic feast day of St. Nicholas, said the Manila Bulletin Dec. 5. He was a fourth century bishop and patron saint of Orthodox Christians, Russia, Holland and children around the world. Dec. 6 is Saint Nicholas Day in many countries. He is the Christmas gift-giving figure and basis for the Santa Claus legend, St.Nick's acts of charity weren't myth, however. If you want to celebrate a more Christ-centered Advent and Christmas, here are free printable St. Nicholas activities. Saint Nicholas Day printables, crafts, games, recipes and activities