Birth of Sun Yat-Sen, also Doctors' Day and Cultural Renaissance Day. (Republic of China)

Sun Yat-sen's birthday is observed in Taiwan as Doctors' Day and Cultural Renaissance Day, honoring the 'Father of the Nation'.
Sun Yat-sen (1866–1925) was a revolutionary leader who played a key role in overthrowing the Qing Dynasty. In the Republic of China (Taiwan), November 12, his birthday, is celebrated as a national commemorative day. It is observed as Doctors' Day to recognize the contributions of medical professionals to public health. The day is also known as Cultural Renaissance Day, reflecting Sun's vision for national rejuvenation through education and culture. Festivities include ceremonies at memorials, cultural performances, and educational events. The holiday underscores Sun Yat-sen's enduring influence on modern Chinese history and identity.
Birth of Sun Yat-Sen Republic of China

Christianfeast day:

Arsatius, Astrik (or Anastasius) of Pannonhalma, Cumméne Fota, Cunibert, Emilian of Cogolla, Imerius of Immertal, Josaphat Kuntsevych(Roman Catholic Church,Greek Catholic Church), Lebuinus (Liafwine), Livinus of Ghent, Machar, Margarito Flores García, Nilus of Sinai, Patiens, René d'Angers, Theodore the Studite, Ymar, November 12 (Eastern Orthodox liturgics)

A calendar of Christian feast days on November 12, commemorating saints such as Arsatius, Cunibert, and Theodore the Studite.
On November 12, various Christian denominations honor a group of saints spanning centuries of church history. Feast days on this date include hermits, bishops, and martyrs like Arsatius, Cumméne Fota, and Josaphat Kuntsevych. The Roman Catholic and Greek Catholic Churches commemorate missionaries such as Astrik of Pannonhalma and René d'Angers. Eastern Orthodox tradition also celebrates figures like Theodore the Studite and Nilus of Sinai. These observances involve liturgical services, prayers, and readings of the saints' lives. The day reflects the diversity and continuity of Christian sainthood across different cultures.
feast day Arsatius Astrik (or Anastasius) of Pannonhalma Cumméne Fota Cunibert Emilian of Cogolla Imerius of Immertal Josaphat Kuntsevych Roman Catholic Church Greek Catholic Church Lebuinus (Liafwine) Livinus of Ghent Machar Margarito Flores García Nilus of Sinai Patiens René d'Angers Theodore the Studite Ymar November 12 (Eastern Orthodox liturgics)

Constitution Day (Azerbaijan)

Constitution Day in Azerbaijan commemorates the adoption of the country's constitution on November 12, 1995.
Celebrated annually on November 12, Constitution Day marks the day Azerbaijan ratified its post-Soviet constitution in 1995. The constitution established democratic institutions and enshrined fundamental rights and freedoms. Official ceremonies include speeches by government leaders and cultural performances in the capital, Baku. Schools and universities hold educational events to discuss the constitution's principles and its role in nation-building. The holiday highlights the rule of law and the development of Azerbaijan's modern political framework. Citizens reflect on constitutional rights while participating in civic and cultural activities.
Constitution Day (Azerbaijan)

Father's Day(Indonesia)

Indonesia celebrates National Father's Day on November 12 to honor the role and contributions of fathers in family and society.
National Father's Day (Hari Ayah Nasional) was established in Indonesia to recognize the importance of fatherhood. Observed on November 12, it encourages families to appreciate and acknowledge paternal guidance and sacrifices. Schools and communities organize events such as father-child activities, seminars, and award ceremonies. The day promotes the values of responsibility, love, and leadership that fathers provide within families. Media campaigns and public speeches emphasize the role of father figures in shaping future generations. It serves as a reminder of fatherhood's significance in social and cultural contexts.
Father's Day Indonesia

National Health Day(Indonesia)

National Health Day in Indonesia promotes awareness of public health issues and encourages healthy lifestyles among citizens.
National Health Day (Hari Kesehatan Nasional) is observed annually on November 12 in Indonesia. The day commemorates the country's commitment to improving healthcare and preventing disease. Government agencies launch campaigns on topics like vaccination, sanitation, and healthy eating. Community health centers offer free screenings and educational workshops for families. Schools host health fairs, exercise events, and lectures on nutrition and well-being. The observance emphasizes collective responsibility for public health and disease prevention.
National Health Day Indonesia

National Youth Day (East Timor)

East Timor's National Youth Day on November 12 celebrates the contributions and potential of the nation's young people.
National Youth Day in Timor-Leste is observed on November 12 to honor the energy and creativity of youth. The date marks a pivotal moment in the country's independence movement led by young activists. Activities include cultural performances, youth forums, and sports competitions nationwide. Government and NGOs organize workshops on leadership, entrepreneurship, and civic engagement. The day encourages young Timorese to participate in national development and social progress. It highlights youth empowerment as a cornerstone of the country's future.
National Youth Day (East Timor)

World Pneumonia Day

World Pneumonia Day on November 12 raises global awareness about pneumonia prevention and treatment.
Established in 2009 by a coalition of health organizations, World Pneumonia Day focuses on combating the leading infectious killer of children under five. The day mobilizes stakeholders to improve access to vaccines, antibiotics, and healthcare services. Campaigns include public health messages, fundraising events, and policy advocacy at local and international levels. Healthcare providers host free clinics and educational seminars on pneumonia symptoms and prevention. Collaborations between governments, NGOs, and communities emphasize the importance of clean air, nutrition, and immunization. World Pneumonia Day underscores the need for collective action to reduce pneumonia-related deaths worldwide.
World Pneumonia Day

Arsatius

Saint Arsatius, a 7th-century hermit, is commemorated for his devotion and piety in Christian tradition on November 12.
Little is known about the life of Saint Arsatius beyond his reputation for asceticism and prayer. He is venerated as a hermit and saint in the Roman Catholic Church, with relics housed in Bavaria. His feast day on November 12 honors his commitment to spiritual discipline and solitude. Devotees visit chapels dedicated to him, seeking inspiration from his life of simplicity. Liturgical services on this day include readings of his life and prayers for personal holiness. Arsatius' legacy endures in monastic communities that value contemplative practices.
Arsatius

Astrik (or Anastasius) of Pannonhalma

Saint Astrik (Anastasius) of Pannonhalma was the first Archbishop of Esztergom and missionary of Hungary, commemorated on November 12.
Astrik, also known as Anastasius, served as the first Archbishop of Esztergom in the early 11th century. He played a crucial role in spreading Christianity in Hungary under King Stephen I. One of his notable achievements was the consecration of Stephen as the first Christian king of Hungary. His leadership helped establish the Hungarian church's structure and its ties to the papacy. On November 12, churches remember Astrik's missionary work with special masses and prayers. His legacy is reflected in the enduring Christian traditions of Hungary.
Astrik (or Anastasius) of Pannonhalma

Cumméne Fota

Cumméne Fota, abbot of Iona Abbey in the 7th century, is honored for his leadership and scholarship on November 12.
Cumméne Fota was abbot of Iona Abbey in the 7th century, renowned for his leadership and scholarship. He played a key role in monastic administration and correspondence with other centers of learning. His letters addressed theological and ecclesiastical matters, influencing early Irish Christianity. On November 12, the church commemorates his contributions to monastic discipline and scholarship. Worship services include readings of his surviving letters and reflections on monastic life. His legacy endures in the Celtic monastic tradition.
Cumméne Fota

Cunibert

Feast day of Saint Cunibert, a 7th-century bishop of Cologne known for his devout leadership and miracles.
Saint Cunibert served as Bishop of Cologne in the early medieval period. He was revered for his pastoral care and miracles attributed to his intercession. After his death around 663, his shrine became a pilgrimage site. The feast day on November 12 honors his contributions to the Christian community in the Rhineland. Pilgrims reflect on his life of service and the care he showed to the poor. Local churches hold special masses, processions, and prayers in his memory. His legacy endures in annual celebrations around Cologne.
Cunibert

Emilian of Cogolla

Commemorates Saint Emilian of Cogolla, a 6th-century Spanish hermit and abbot famed for his piety and miracles.
Saint Emilian of Cogolla lived as a hermit in the mountains of La Rioja in the 6th century. He later founded the Monasteries of Yuso and Suso, which became centers of learning and pilgrimage. Renowned for his ascetic lifestyle and healing miracles, he attracted disciples from across Iberia. After his death, his legacy inspired the growth of monastic culture in medieval Spain. The feast day on November 12 is celebrated with liturgies, pilgrimages, and cultural festivities. Thousands of visitors honor his memory at the historic monastery complex each year.
Emilian of Cogolla