The official Christmas season, popularly known as either Christmastide or the Twelve Days of Christmas, extends from Christmas Day, December 25, to the feast of Epiphany on January 6. Most of us know the tune of the song that starts "On the first day of Christmas, my true love gave to me" and many of us know what the gifts were. However, keeping straight which gifts were given on which days is a different story. See how well you know this classic ditty (and when you're done, learn a thing or two about the gifts in the song).