September 13
Overview
Holidays & Observances
Christianfeast day:
Feast of the Cross(Assyrian Church of the East), Aimé (Amatus), Ame, Eulogius of Alexandria, John Chrysostom, Marcellinus of Carthage, Maurilius (Maurille) of Angers, Nectarius of Autun, Venerius the Hermit, Wulfthryth (Wilfrida) of Wilton, September 13 (Eastern Orthodox liturgics)
Christian liturgical calendars mark 13 September as a feast day celebrating the True Cross and honoring multiple saints, including John Chrysostom and Aimé (Amatus).
Day of the Programmer, during a non-leap year. (Russia)
In Russia, the Day of the Programmer is observed on 13 September (the 256th day of the year in non-leap years) to honor the profession and its achievements.
Día de los Niños Héroes(Mexico)
Día de los Niños Héroes is a Mexican memorial day on 13 September honoring the young cadets who fell defending Chapultepec Castle during the Mexican–American War in 1847.
Engineer's Day(Mauritius)
In Mauritius, Engineer’s Day on 13 September recognizes the vital contributions of engineers to national development and innovation.
Roald Dahl Day(Africa, United Kingdom, Latin America)
Roald Dahl Day celebrates the life and imagination of the beloved author on his birthday, 13 September.
Feast of the Cross(Assyrian Church of the East)
The Assyrian Church of the East observes the Feast of the Cross on 13 September, venerating the instrument of Christ’s crucifixion.
Aimé (Amatus)
Feast day of Saint Aimé (Amatus), a medieval monk and bishop revered for his devotion and pastoral care.
Ame
Eulogius of Alexandria
Events
Lucius Tarquinius Priscus, king of Rome, celebrates a triumph for his victories over the Sabines, and the surrender of Collatia.
Roman King Lucius Tarquinius Priscus celebrates a triumph over the Sabine people following the surrender of Collatia.
The Temple of Jupiter Optimus Maximus on Rome's Capitoline Hill is dedicated on the ides of September.
The grand Temple of Jupiter Optimus Maximus is solemnly dedicated atop Rome’s Capitoline Hill.
Yax Nuun Ahiin I is crowned as 15th Ajaw of Tikal
Yax Nuun Ahiin I ascends as the 15th ruler (Ajaw) of the ancient Maya city of Tikal.
Belisarius of the Byzantine Empire defeats Gelimer and the Vandals at the Battle of Ad Decimum, near Carthage, North Africa.
Byzantine General Belisarius defeats the Vandals led by King Gelimer at the Battle of Ad Decimum near Carthage.
Ögedei Khan is proclaimed Khagan of the Mongol Empire in Kodoe Aral, Khentii: Mongolia.
Ögedei Khan is proclaimed the Great Khan (Khagan) of the Mongol Empire at Kodoe Aral, Mongolia.
Battle of Tangier: a Portuguese expeditionary force initiates a failed attempt to seize the Moroccan citadel of Tangier.
Portuguese forces launch a failed assault on the Moroccan citadel of Tangier during the Battle of Tangier.
Henry Hudson reaches the river that would later be named after him – the Hudson River.
Explorer Henry Hudson reaches the vast North American river later named the Hudson River.
Wars of the Three Kingdoms: Scottish Royalists are defeated by Covenanters at the Battle of Philiphaugh.
Covenanter forces defeat Scottish Royalists at the decisive Battle of Philiphaugh during the Wars of the Three Kingdoms.
Great Britain, Austria and the Kingdom of Sardinia sign the Treaty of Worms.
Great Britain, Austria, and Sardinia sign the Treaty of Worms, forging a new alliance in the War of the Austrian Succession.
Births
Julia Flavia
Daughter of Roman Emperor Titus, remembered for her role in the Flavian dynasty.
Kʼinich Ahkal Moʼ Nahb III
King of the Maya city-state of Palenque, presiding over an era of monumental construction.
John II Komnenos
Byzantine emperor celebrated for his military skill and administrative reforms.
Minkhaung I
Monarch of Burma’s Ava Kingdom, known for his ambitious military campaigns.
Cesare Borgia
Influential Italian cardinal and nobleman whose life inspired Machiavelli.
John Leland
Pioneering English poet and antiquary, often called the father of English local history.
William Cecil
Chief advisor to Queen Elizabeth I, who shaped the Elizabethan era's politics and culture.
Francesco Manelli
Early Baroque Italian composer and theorbo virtuoso, known for pioneering Venetian opera.
Sir William Brereton
English commander and politician who led Parliamentary forces during the Civil War.
Deaths
Titus
The elder son of Emperor Vespasian, Titus ruled the Roman Empire from 79 to 81 and is celebrated for completing the Colosseum.
Marcellinus of Carthage
An early Christian martyr from Carthage, venerated as a saint for his unwavering faith under persecution.
Kavad I
Kavad I was the Sasanian 'King of Kings' of Iran, known for his political resilience and pioneering social reforms.
Pietro Tradonico
Pietro Tradonico served as the sixth Doge of Venice from 836 to 864, known for fortifying the republic against external threats.
Cormac mac Cuilennáin
Cormac mac Cuilennáin was a warrior-bishop who reigned as King of Munster and became known for his scholarly contributions.
Al-Adid
Al-Adid was the twelfth and final Fatimid caliph, whose reign ended with Saladin's rise and the dynasty's fall in 1171.
Notburga
Notburga of Rattenberg was an Austrian saint remembered for her humble service and compassion toward peasants and the poor.
Isabella of Valois
Isabella of Valois was a French princess who became Queen of England as a child bride to Richard II and later Duchess of Orléans.
Charles II
Charles II was Duke of Bourbon known for his power struggles with King Louis XI and efforts to preserve his duchy's autonomy.