September 27

On September 27, the Eastern Orthodox Church commemorates saints including Adheritus, Bonfilius, Caius of Milan, Vincent de Paul, and the martyr twins Cosmas and Damian. These feasts celebrate the lives and legacies of early Christian figures who contributed to the faith through service, healing, and teaching. Vincent de Paul is known for his charitable work, while Cosmas and Damian are revered as patron saints of physicians. The day is marked by special liturgies, prayers, and readings in the Orthodox calendar. Communities may hold church services, processions, and venerate icons representing the honored saints.

Consumación de la Independencia is celebrated on September 27 to commemorate the signing of the Treaty of Córdoba in 1821, which officially secured Mexico’s independence from Spanish rule. The historic event followed the end of a decade-long war that began with the Grito de Dolores in 1810. Today, Mexicans honor the occasion with ceremonies, flag-raising events, and cultural performances. Public buildings are decorated in national colors and schools often hold educational activities about the independence movement. This day fosters national pride and remembrance of the sacrifices made by those who fought for freedom.

The French Community Holiday on September 27 honors the institutions and culture of the French-speaking population in Belgium. Established in 1975, it marks the anniversary of the founding of the French Community’s institutions in 1970. Festivities include concerts, exhibitions, and cultural events showcasing literature, music, and art. Schools and public offices in the Wallonia-Brussels region close for the day. The holiday reinforces regional identity and promotes the French language within Belgium’s multilingual society.

Independence Day in Turkmenistan marks the declaration of sovereignty from the USSR on September 27, 1991. The day is celebrated with grand parades in Ashgabat, fireworks, and public speeches by government leaders. Citizens participate in cultural performances displaying traditional music, dance, and crafts. Schools and businesses close to allow families to celebrate together. This holiday symbolizes national unity and the achievements of Turkmen citizens in building their own state.

Meskel is celebrated on September 27 (or September 28 in Julian leap years) by the Ethiopian and Eritrean Orthodox Churches. The festival honors Empress Helena of Constantinople’s finding of the True Cross in the 4th century. Communities light large bonfires called Demera to symbolize the bonfire that guided Helena to the cross. Clergy lead prayers and hymns, and believers exchange gifts and traditional foods. The day is marked by festive gatherings, colorful processions, and the reading of religious texts, reinforcing faith and cultural unity.

National Gay Men’s HIV/AIDS Awareness Day is observed annually on September 27 in the United States to focus attention on the HIV/AIDS epidemic among gay, bisexual, and other men who have sex with men. Established in 1999, it promotes prevention, testing, and treatment services tailored to this community. Health organizations host workshops, multimedia campaigns, and outreach events to reduce stigma and encourage safer behaviors. The day also honors the lives lost to the disease and supports ongoing research efforts. It aims to foster a supportive environment and improve health outcomes.

Polish Underground State’s Day on September 27 honors the secret government established under Nazi occupation in 1939. This clandestine administration coordinated military resistance, education, and civil services across occupied Poland. The day features ceremonies at Warsaw’s monuments, educational programs, and veteran reunions. Schools teach about the bravery of the Home Army (Armia Krajowa) and the legacy of civilian resistance. The observance preserves the memory of those who risked their lives to maintain national sovereignty under oppression.

World Tourism Day, designated by the United Nations World Tourism Organization, is celebrated on September 27 to foster awareness of tourism’s impact on global development. Since its establishment in 1979, each year focuses on a theme such as sustainable tourism, rural development, or digital innovation. Events include international conferences, community tours, and marketing campaigns promoting responsible travel. The day encourages stakeholders—from governments to local businesses—to work together for tourism that benefits societies economically and culturally. It underscores tourism’s role in cross-cultural understanding and environmental stewardship.

Saint Adheritus is honored on September 27 in Eastern Orthodox liturgical calendars as a bishop and martyr of the early Church. Little is known about his life, but traditions credit him with pastoral care and defense of orthodoxy. The day is observed with special church services, icon veneration, and readings of his life and martyrdom. Faithful gather to pray for guidance and spiritual strength, drawing inspiration from his example of steadfast faith amid persecution. His feast reflects the Church’s remembrance of lesser-known saints whose sacrifices shaped Christian history.

Saint Bonfilius is celebrated on September 27 by the Eastern Orthodox and some Western Christian communities. Recognized as a faithful companion to Saint Adrian, Bonfilius is remembered for his devotion and service within the Church. Liturgical commemorations include special hymns, prayers, and the reading of his acts of charity. Monastic communities may hold vigils in his honor, emphasizing humility and obedience. The feast day encourages believers to emulate his virtues of loyalty and selfless service.

Saint Caius of Milan led the Christian community in the turbulent 3rd century and guided the church through challenges and persecutions. He is remembered for his pastoral care, dedication to liturgical development, and efforts to support the poor in Milan. Each year on September 27, the Church commemorates his legacy with readings and prayers that reflect on his faith and leadership. Although few historical records remain, his influence helped shape the Milanese see and prepared the way for later figures like Saint Ambrose. Pilgrims and historians alike revere his contributions to early ecclesiastical structure and worship practices.

Saint Vincent de Paul dedicated his life to serving the marginalized and founded the Congregation of the Mission and the Daughters of Charity. He pioneered organized charity work in 17th-century France, introducing mobile hospitals and soup kitchens for the poor. His feast day on September 27 honors his compassion and innovative spirit in social service. Millions continue his mission through Vincentian societies and charitable organizations worldwide. Events include fundraisers, volunteer drives, and reflections on his enduring legacy.