The Solemnity of Mary, the Holy Mother of God is a feast day of the Blessed Virgin Mary under the aspect of her motherhood of Jesus Christ celebrated on January 1. Aaccording to Levitical Law, the Virgin Mary had circumcised on the eighth day after Jesus birth.
It is celebrated by the Roman Rite of the Catholic Church on 1 January, the Octave (8th) day of Christmas. This solemnity is a Holy Day of Obligation in areas that have not abrogated it. Christians of Byzantine, West Syriac, and East Syriac Rites celebrate Mary as the Mother of God on 26 December (also known as the Synaxis of the Theotokos), while the Coptic Church (an Oriental Orthodox church) does so on 16 January.
The Eastern Orthodox Church, Traditional Catholics, Anglican Communion and the Lutheran Church observe the Feast of the Circumcision of Christ on 1 January.