The Solemnity of Mary, the Holy Mother of God is a feast day of the Blessed Virgin Mary celebrated by the Roman Rite of the Catholic Church on 1 January, the Octave (8th) day of Christmas. It commemorates Mary's role in the mystery of salvation and her motherhood of Jesus Christ. The title 'Mother of God' is a literal translation of the Latin title Mater Dei and a rendering of the Greek title Theotokos.
The Solemnity is a holy day of obligation for Catholics, although it can be abrogated when it falls on a Saturday or Monday. Pope Paul VI encouraged its restoration in his apostolic exhortation Marialis Cultus in 1974. The title Theotokos arose from generations of Christians who experienced the effects of Mary's intercession as the fruit of the Incarnation. This Solemnity presents us with an opportunity to start the new year with hope and prayer for peace in a troubled world.