Holy Theophany! Christ is Baptized -- in the Jordan!
Today and tomorrow the Catholic Church of the Roman Rite celebrate the Baptism of the Lord Jesus Christ in the River Jordan by the hand of the great Forerunner, Prophet and Baptist John.
This celebration in the Eastern Churches, especially those of the Byzantine Rite (Rusyn, Melkite, Romanian, Ukrainian, Bylorussian, Russian and Greek -- those in communion with the Church of Rome) call this the Holy Theophany of Our Lord, God and Savior Jesus Christ.
The Eastern Orthodox (those Eastern Byzantine Churches not in communion with Rome -- Russia, Greece, Bulgaria, Serbia, Constantinople, Ukraine, Cyprus, Albania, Romania, Bylorus and Antioch in Syria) also call this feast the "theophany"", but celebrate it on a different day according to the Julian Calendar (predating the calendar we use today in the West, the Gregorian Calendar from the 16th century).
The word "theophany" means the manifestation of God, and differs from the Western Church (Roman Catholic and those of the Protestant Reform which follow a liturgical calendar) "epiphany". For Western Christians the Epiphany celebrates the manifestation of God through the visitation of the Magi -- Gentiles coming from the East, according to the Gospel of Matthew.
Theophany refers to the manifestation of God in the flesh at the Jordan River when the Most Holy Trinity is revealed for the first time -- the Son is baptized in the River by John the Forerunner; the voice of the Father is heard over the waters; the Holy Spirit descends upon the Son in the form of a dove.
In the Eastern Catholic Churches (most of which follow the Gregorian calendar), the celebration of Holy Theophany falls on January 6th; in the West this is the traditional date of Epiphany. For both Eastern and Western Catholics, this is a traditional date for blessing homes.