The "Twelve Days of Christmas" is a traditional Christmas carol and Christmas game based on the "Twelve Days of Christmas" lyrics. The song is a cumulative song, meaning each verse adds a line, building up to a cumulative total. The song has been popular since the late 18th century and is performed in many countries. The twelve days of Christmas refer to the twelve days between Christmas Day and the day of the Epiphany, when the Magi visited the baby Jesus.