Solemnity of Mary, Mother of God;and its related observances:

World Day of Peace

The Solemnity of Mary, Mother of God, honors Mary's divine role as Theotokos, while January 1st also serves as the World Day of Peace promoting global harmony.
The Solemnity of Mary, Mother of God is a principal feast of the Catholic Church celebrated on January 1st, the octave day of Christmas, affirming Mary's divine motherhood. By proclaiming Mary as Theotokos—God-bearer—the feast underscores the mystery of the Incarnation celebrated at Christmas. This solemn liturgy includes festive Masses, special antiphons, and prayers focused on Mary's role in salvation history. In 1968, Pope Paul VI established January 1st as the World Day of Peace, inviting all people of goodwill to pray and work for peace. Each year, the Pope issues a message reflecting on themes such as dialogue, justice, and care for creation to foster global harmony. Catholic communities may hold peace prayers, educational events, and charitable activities inspired by the Pope's annual theme. The convergence of these observances blends Marian devotion with a universal call for peace at the beginning of the calendar year.
Solemnity of Mary, Mother of God World Day of Peace

World Day of Peace

An annual observance proclaimed by the Pope on January 1st, dedicated to prayer and action for global peace.
The World Day of Peace was established by Pope Paul VI in 1967 and is celebrated each January 1st to promote peace worldwide. Every year, the Pope issues a thematic message addressing global issues such as conflict resolution, social justice, and human rights. The observance encourages individuals, communities, and nations to engage in dialogue, solidarity, and non-violence. Catholic dioceses and parishes around the world hold peace Masses, educational events, and charitable activities inspired by the Papal message. The day underscores the Church's commitment to peacebuilding through prayer, diplomacy, and promoting the common good. Although rooted in Catholic tradition, the World Day of Peace resonates with people of all faiths and backgrounds seeking harmony.
World Day of Peace