Christmas traditions in France have strong religious elements rooted in the 14th century introduction of nativity scenes by St. Francis of Assisi. On Christmas Eve, families attend midnight mass and celebrate with a feast called "Le Reveillon." On Christmas Day, families gather around the Christmas tree to open gifts left by Pere Noel and spend the day together singing carols. Easter traditions in France similarly involve religious observances as well as family meals and celebrations over the course of the week-long Easter holiday.