January: Month of the Holy Name
January is the month of the Holy Name of Jesus. The feast of the Holy Name originated in the 1500s and was formerly celebrated on the second Sunday of Epiphany. It was removed from the calendar in 1969, "since the imposition of the name of Jesus is already commemorated in the office of the Octave of Christmas." (motu propri: Mysterii Paschalis, 1969) It was restored in 2002 as an optional memorial on the first free day after January 1st.
Because of the feasts in January which pertain to Christ's infancy and childhood, January has also become a month dedicated to the Holy Childhood of Jesus.