Why is Mary the month May?

Answer 1

By tradition, the Catholic Church dedicates each month of the year to a certain devotion. In May, it is the Blessed Virgin Mary. This devotion rose among the Jesuits in Rome in the late 18th century and quickly spread throughout the western Church. By the time of Pope Pius IX's declaration on of the dogma of Immaculate Conception in 1854, it had become universal. May crownings and other special May events in honor of Mary, such as public recitation of the Holy Rosary, stem from this time. The Hail Holy Queen (also commonly known by its Latin name, Salve Regina) is one of four special anthems to the Mother of God that have traditionally been part of the Liturgy of the Hours, and which vary depending on the season. The prayer is also commonly said at the end of the Rosary and in morning prayers. But there's an indication of May having been the month dedicated to Mary much earlier than the 18th century. Another source of information on Why is May the Month of Mary can be found here: http://campus.udayton.edu/mary/meditations/crownmed.html#crown2 and: http://www.catholicculture.org/culture/liturgicalyear/overviews/months/05_1.cfm

Answer 2

Are you perhaps referring to the song referencing the merry month of May, 'merry' meaning joyful, happy?