Epiphany (from Koine Greek (ἡ) ἐπιφάνεια, epiphaneia \"appearance\", \"manifestation\") is a Christian feast day that celebrates the revelation of God made Man in the person of Jesus Christ. It falls on 6 January or, in many countries, on the Sunday that falls between 2 January and 8 January.[2][3] Since the Julian Calendar, which is followed by some Eastern Churches, is at present 13 days behind the Gregorian Calendar and the revised Julian Calendar, 6 January in that calendar corresponds at present to 19 January in what is the official civil calendar in most countries. On this feast, Western Christians commemorate principally the visitation of the Biblical Magi to the Baby Jesus, i.e., his manifestation to the Gentiles; Eastern Christians commemorate the baptism of Jesus in the Jordan River, seen as his manifestation to the world as the Son of God. It is also called Theophany, especially by Eastern Christians.