History of Epiphany and Twelfth Night

These end the 12 Days of Christmas?

Adoration of the Magi, Fernando Gallego, Google Art Project

Twelfth Night is on January 5, the eve of Epiphany.

Epiphany occurs in the Christian calendar on January 6, signifying the event of the Magi, or Wise Men, visiting the baby Jesus. It is known in some Latin cultures as the Feast of the Three Kings or Three Kings Day.