We celebrate the solemnity of Mary because its is a sacred day of obligation and completes part of Christmas and new years day.
Solemnity of Mary is celebrated on the 1st Of January
Mary has many feast days throughout the year but the official Solemnity of Mary is celebrated on January 1.
No, the Nativity of the Blessed Virgin Mary is not considered a solemnity in the Roman Calendar. However, it is observed as such in a few limited places.
In the United States many Catholics celebrate 3 holy days. These holy days consist of Solemnity of the Virgin Mary, Feast of the Assumption, and Solemnity of All Saints. If you would like to learn about additional holy days in Catholicism see the link below.
January 1.
In addition to Sunday, the days to be observed as holy days of obligation in the Latin Rite dioceses of the United States of America, are as follows: January 1, the solemnity of Mary, Mother of God; Thursday of the Sixth Week of Easter, the solemnity of the Ascension; August 15, the solemnity of the Assumption of the Blessed Virgin Mary; November 1, the solemnity of All Saints; December 8, the solemnity of the Immaculate Conception; December 25, the solemnity of the Nativity of Our Lord Jesus Christ. Whenever January 1, the solemnity of Mary, Mother of God, or August 15, the solemnity of the Assumption, or November 1, the solemnity of All Saints, falls on a Saturday or on a Monday, the precept to attend Mass is abrogated.
The Solemnity of Mary honors Mary as the Mother of Jesus including both His Humanity and His Divinity. The very early Church leaders did not believe that Mary, a human, could be the mother of Jesus as God. A council in AD 41 settled this.
The Solemnity of Mary the Mother of God is celebrated on January 1.
Because man, organising the church says so. But it is not a Bible practice.
All Catholic congregations around the world celebrate All Saints Day as it is a major solemnity and a Holy Day of Obligation.
January 1 is a Solemnity, a major feast day, in the Catholic Church -the Solemnity of the Blessed Virgin Mary.
The two holy days of obligation in Canada * Solemnity of Mary, Mother of God * Christmas