Q. 1. What is the "Three Kings' Day?"
A. 1. The "Three Kings' Day" is twelve days after Christmas. It celebrates the visit of the three wise men to the infant Jesus, referred to as the "Ephiphany of Our Lord."
The Epiphany is a Christian feast day that celebrates the revelation of God the Son as a human being in Jesus Christ. In Western Christianity, the feast commemorates principally (but not solely) the visit of the Magi to the Christ child, and thus Jesus' physical manifestation to the Gentiles.
The earliest reference to Epiphany (Three King's Day) as a Christian feast was in A.D. 361. St. Epiphanius says that January 6 is hemera genethlion toutestin epiphanion (Christ's "Birthday; that is, His Epiphany").
Tradition tells us that gift giving was originally done on Epiphany, not at Christmas. This practice model after the magi (Three Kings) who brought gold, frankincense (an aromatic gum resin used in incense and perfumes), and myrrh (another aromatic plant resin).
In many countries, Three Kings' Day is a time when Christians celebrate, sometimes for weeks afterwards.