January 6th is Epiphany Day
About Epiphany
Epiphany is commonly known as Three Kings’ Day or the Feast of the Epiphany. It means “manifestation” or “showing forth.” It is also called Theophany (“manifestation of God”), especially by Eastern Christians. Epiphany refers not only to the day itself but to the church season that follows it.
It commemorates the first two occasions on which Jesus’ divinity, according to Christian belief, was manifested: when the three kings (also known as wise men or Magi) visited infant Jesus in Bethlehem, and when John the Baptist baptized him in the River Jordan. The Roman Catholic and Protestant churches emphasize the visit of the Magi when they celebrate the Epiphany. The Eastern Orthodox churches focus on Jesus’ baptism.
Epiphany is one of the oldest Christian feasts. It was celebrated since the end of the second century, before the Christmas holiday was established. Like other Christian seasons, the church appropriated Epiphany from an old pagan festival. As early as 1996 BCE, the Egyptians celebrated the winter solstice (which then occurred on January 6) with a tribute to Aeon, the Virgin. It is important to note that the holiday was established prior to the Gregorian calendar’s introduction.
https://www.timeanddate.com/holidays/common/epiphany