Christianfeast day:
Arethas(Western Christianity), Aurelius and Nataliaand companions of theMartyrs of Córdoba., Maurus, Pantalemon, and Sergius, Pantaleon, Seven Sleepers of Ephesus(Roman Martyrology)National Sleepy Head Day(Finland), Theobald of Marly, Titus Brandsma,O.Carm., July 27 (Eastern Orthodox liturgics)
A day honoring various Christian saints in Western and Eastern traditions, paired with Finland's playful National Sleepy Head Day.
Every July 27, Christians celebrate the feast days of saints like Arethas in Western churches and commemorate Aurelius and Natalia of Córdoba, Maurus, Pantalemon, Sergius, Pantaleon, and the Seven Sleepers of Ephesus per the Roman Martyrology.
The Eastern Orthodox liturgics also observe the date with special services honoring local and wider church figures.
Additionally, Finland observes National Sleepy Head Day, a lighthearted tradition where the last person in the household to wake is playfully doused with water or tossed into a lake.
The day also pays homage to Theobald of Marly and Blessed Titus Brandsma, whose contributions to Carmelite spirituality and resistance during turmoil are celebrated.
Communities hold masses, processions, and communal gatherings, blending solemn remembrance of martyrdom with playful customs that foster unity.
feast day
Arethas
Western Christianity
Aurelius and Natalia
Martyrs of Córdoba
Maurus, Pantalemon, and Sergius
Pantaleon
Seven Sleepers of Ephesus
Roman Martyrology
National Sleepy Head Day
Finland
Theobald of Marly
Titus Brandsma
O.Carm.
July 27 (Eastern Orthodox liturgics)
Day of Victory in the Great Fatherland Liberation War(North Korea)
A North Korean public holiday marking the end of the Korean War with celebrations of military victory.
Observed annually on July 27 in North Korea, Day of Victory in the Great Fatherland Liberation War commemorates the signing of the 1953 Korean Armistice Agreement that ended active combat of the Korean War.
The state organizes military parades, mass rallies, and patriotic performances highlighting the nation's triumph.
Citizens participate in wreath-laying ceremonies at monuments honoring fallen soldiers and displays of military hardware.
Televised broadcasts and newspaper features emphasize unity, resilience, and loyalty to the state's founding principles.
This solemn yet celebratory occasion remains one of the most significant national events in the DPRK, reinforcing collective memory and ideology.
Day of Victory in the Great Fatherland Liberation War
North Korea
Iglesia ni Cristo Day(the Philippines)
Commemorates the founding of the Philippine church organization Iglesia ni Cristo each July 27.
Iglesia ni Cristo Day honors the founding of the church by Felix Y. Manalo on July 27, 1914, in the Philippines.
Members worldwide gather for thanksgiving services, processions, and special prayer meetings to celebrate spiritual milestones.
Major chapels, including the Central Temple in Quezon City, host cultural presentations, gospel missions, and outreach programs.
Congregations reflect on their growth from a small local group to an international presence, emphasizing unity and faithfulness.
The day fosters community service, charity work, and a reaffirmation of church doctrines, making it a highlight of the INC calendar.
Iglesia ni Cristo Day
the Philippines
José Celso Barbosa Day(Puerto Rico)
Honors the birth and legacy of Dr. José Celso Barbosa, a pioneering physician and political founder from Puerto Rico.
José Celso Barbosa Day in Puerto Rico celebrates the birth anniversary of Dr. José Celso Barbosa, born July 27, 1857, known as the father of Puerto Rican statehood.
He was among the first Puerto Ricans to earn a medical degree in the United States, advocating for public health reforms and social justice.
Barbosa founded the Republican Party of Puerto Rico, championing civil rights, education, and greater political autonomy.
Schools, civic groups, and government agencies host lectures, exhibitions, and service projects highlighting his contributions.
The day inspires reflection on his enduring impact in medicine, politics, and the ongoing pursuit of self-governance for Puerto Rico.
José Celso Barbosa Day
Puerto Rico
Medical Workers Day(Ukraine)
A professional holiday in Ukraine honoring the contributions of medical and healthcare workers.
Medical Workers Day in Ukraine is observed on July 27 to recognize the dedication and sacrifices of doctors, nurses, and healthcare professionals.
Established to highlight their vital role in public health, the day features award ceremonies and conferences on medical advancements.
Hospitals and clinics hold open days, blood donation drives, and free health screenings for local communities.
Government officials, patients, and advocacy groups express gratitude through tributes, certificates, and public acknowledgments.
The occasion fosters solidarity among medical staff and promotes excellence in healthcare delivery across the nation.
Medical Workers Day
Ukraine
Martyrs and Wounded Soldiers Day(Vietnam)
Vietnam’s national day honoring the sacrifices of martyrs and wounded soldiers.
Martyrs and Wounded Soldiers Day in Vietnam, observed on July 27, is dedicated to honoring those who laid down their lives or were injured in wars for national independence.
Ceremonies include offerings of incense and wreaths at martyrs’ cemeteries and memorial sites at dawn.
Schools, military units, and civic organizations organize visits to veterans and support programs for injured servicemen and their families.
Cultural performances, patriotic speeches, and exhibitions highlight the country’s history of resistance and sacrifice.
Government leaders and the public reaffirm their commitment to preserving peace and commemorating the heroes’ legacies.
Martyrs and Wounded Soldiers Day
Vietnam
Arethas(Western Christianity)
Celebrates Saint Arethas, a martyr honored in Western Christian traditions.
Saint Arethas was an early Christian martyr revered for his steadfast faith amid persecution, commemorated on July 27 in Western churches.
Although historical details are scarce, liturgical calendars honor his sacrifice through readings, hymns, and prayers.
Parishes named after him hold special masses, and faithful reflect on his example of courage and devotion.
The observance inspires believers to uphold their convictions, drawing from Arethas’s legacy of resilience.
Arethas
Western Christianity
Aurelius and Nataliaand companions of theMartyrs of Córdoba.
Honors the siblings Aurelius and Natalia among the Martyrs of Córdoba for their early Christian witness.
Aurelius and Natalia were brother-and-sister martyrs from 9th-century Córdoba, Spain, who publicly professed Christianity under Islamic rule.
Their courageous stand led to their execution, and they are commemorated alongside other Martyrs of Córdoba on July 27.
Special services in Western liturgical traditions include readings of their acts, prayers, and reflections on religious freedom.
Shrines and parishes dedicated to the Córdoba martyrs host ceremonies that underscore their legacy of faith and resistance.
The observance offers a chance to remember the historical context of interfaith dynamics and the cost of spiritual conviction.
Aurelius and Natalia
Martyrs of Córdoba
Maurus, Pantalemon, and Sergius
Remembers Saints Maurus, Pantalemon, and Sergius, early Christian martyrs honored on this day.
Saints Maurus, Pantalemon, and Sergius were early Christians who suffered martyrdom for their faith and are listed in the Roman Martyrology for July 27.
Traditions vary, but they are collectively recognized for their unwavering devotion amid persecution.
Liturgical celebrations include prayers, hymns, and often processions venerating their sacrifice.
Faith communities gather in churches bearing their names to draw inspiration from their unity and courage under oppression.
Maurus, Pantalemon, and Sergius
Pantaleon
Commemorates Saint Pantaleon, a physician-martyr celebrated for his healing miracles in early Christianity.
Saint Pantaleon, also known as Panteleimon, was a physician who converted to Christianity and offered miraculous healings in the Roman Empire.
Accused for his beliefs, he was tortured and beheaded, becoming a revered martyr in both Western and Eastern traditions.
His feast on July 27 is observed with special liturgies, charitable medical missions, and prayers for the sick.
Churches named after him celebrate his compassion, reflecting on the healing power of faith and service to others.
Pantaleon
Seven Sleepers of Ephesus(Roman Martyrology)
National Sleepy Head Day(Finland)
A Christian feast honoring the Seven Sleepers of Ephesus, legendary martyrs who slept for centuries.
Observed on July 27 in the Roman Martyrology, the Feast of the Seven Sleepers commemorates a group of Christian youths who sought refuge and fell into miraculous sleep for centuries. According to legend, they awoke during a period of Christian persecution, symbolizing faith's triumph over oppression. The story blends historical martyrdom with medieval folklore and has inspired art and literature across Europe. This day highlights themes of faith, hope, and divine protection in Christian tradition.
Seven Sleepers of Ephesus
Roman Martyrology
National Sleepy Head Day
Finland
Theobald of Marly
Commemorates St. Theobald of Marly, a 13th-century Cistercian abbot known for his piety and monastic reforms.
St. Theobald of Marly served as abbot of Cistercian Vaux-de-Cernay and founded Royaumont Abbey in northern France. Celebrated for his humility, devotion to the Virgin Mary, and dedication to care for the sick, he became a model of monastic life. His feast day on July 27 honors his spiritual legacy, including reported miracles at his tomb. Pilgrims visit sites associated with his life to seek intercession and inspiration. The celebration reflects medieval monastic heritage and religious devotion.
Theobald of Marly