Epiphany may have originated in the Greek-speaking eastern half of the Roman Empire as a feast to honor the baptism of Jesus.
is a Christian feast day that celebrates the revelation of God incarnate as 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. However, since 1970, the celebration is held in some countries on the Sunday after January 1.
For Western Christians, the feast primarily commemorates the coming of the Magi, with only a minor reference to the baptism of Jesus and the miracle at the Wedding at Cana.
Eastern churches celebrate the Baptism of Christ in the Jordan.
Epiphanius of Salamis says that January 6 is Christ's "Birthday; that is, His Epiphany" (hemera genethlion toutestin epiphanion).