June 26
Overview
Holidays & Observances
Day of the Armed Forces of Azerbaijan
National holiday in Azerbaijan celebrating the establishment of its armed forces.
Christianfeast day:
Anthelm of Belley, David the Dendrite, Hermogius, Isabel Florence Hapgood(Episcopal Church), Jeremiah(Lutheran), John and Paul, José María Robles Hurtado(one ofSaints of the Cristero War), Josemaría Escrivá, Mar Abhai(Syriac Orthodox Church), Pelagius of Córdoba, Vigilius of Trent, June 26 (Eastern Orthodox liturgics)
A collective feast in Christian traditions honoring several saints whose days coincide on June 26.
Independence Day, celebrates the independence ofSomalilandfrom United Kingdom in 1960. (Somaliland)
Somaliland's Independence Day marks the region's declaration of independence from British colonial rule on June 26, 1960.
International Day against Drug Abuse and Illicit Trafficking(International)
A UN-designated day to raise awareness of global drug abuse and illicit trafficking.
International Day in Support of Victims of Torture(International)
A UN observance dedicated to supporting survivors of torture and promoting prevention efforts.
World Refrigeration Day(International)
A global event highlighting the importance of refrigeration, air conditioning, and heating technologies.
Anthelm of Belley
David the Dendrite
Hermogius
Events
Augustus adopts Tiberius.
Emperor Augustus formally adopts Tiberius as his heir, ensuring a smooth succession of the Roman imperial line.
Roman emperor Elagabalus adopts his cousin Alexander Severus as his heir and grants him the title of Caesar.
Emperor Elagabalus adopts his cousin Alexander Severus as heir, granting him the prestigious title of Caesar.
Roman emperor Julian is killed during the retreat from the Sasanian Empire.
Emperor Julian is mortally wounded during his army’s retreat from the Sasanian Empire, marking a rare imperial death in battle.
Pope Benedict II is the last pope to require confirmation by the Byzantine emperor before taking office.
Pope Benedict II becomes the last pontiff to need formal confirmation from the Byzantine emperor before his papal installation.
En no Ozuno, a Japanese mystic and apothecary who will later be regarded as the founder of a folk religion Shugendō, is banished to Izu Ōshima.
Mystic En no Ozuno is exiled to Izu Ōshima, an event that shapes the origins of the Shugendō spiritual tradition.
Mongols defeat the Seljuk Turks at the Battle of Köse Dağ.
Mongol forces achieve a decisive victory over the Seljuk Turks at Köse Dağ, reshaping Anatolian power dynamics.
Przemysł II crowned king of Poland, following Ducal period. The white eagle is added to the Polish coat of arms.
Przemysł II is crowned King of Poland, reviving the monarchy and adopting the white eagle as the national emblem.
Ulrich von Jungingen becomes Grand Master of the Teutonic Knights.
Ulrich von Jungingen is elected Grand Master of the Teutonic Knights, steering the order at its zenith.
Western Schism: The Roman Catholic Church is led into a double schism as Petros Philargos is crowned Pope Alexander V after the Council of Pisa, joining Pope Gregory XII in Rome and Pope Benedict XIII in Avignon.
The Council of Pisa elects Pope Alexander V, creating a three-way papal dispute and deepening the Western Schism.
Births
Agrippa Postumus
Roman imperial prince and heir to Emperor Augustus, son of Marcus Vipsanius Agrippa and Julia the Elder.
John
French nobleman who held the County of Angoulême and ancestor to King Francis I of France.
King of Naples from 1495 to 1496 known for his brief and turbulent reign.
Queen consort of Denmark and Norway as the wife of King Christian IV, noted for her charitable works and cultural patronage.
San Pedro Claver
Spanish Jesuit missionary who dedicated his life to ministering to enslaved Africans in colonial Colombia, later canonized as a saint.
Juan de Palafox y Mendoza
Spanish Catholic bishop and viceroy of New Spain renowned for his reformist zeal and clashes with colonial elites.
Swedish princess and Duchess consort of Holstein-Gottorp known for her cultural patronage and dynastic marriage.
Edward Holyoke
American Congregational minister and academic who served as the tenth president of Harvard College.
Georg Brandt
Swedish chemist and mineralogist credited with the discovery of the element cobalt.
Deaths
Ptolemy VIII
Ptolemy VIII Physcon was a Hellenistic king of Egypt whose tumultuous reign was marked by dynastic strife and political intrigue.
Julian the Apostate
Julian the Apostate was Roman Emperor from 361 to 363 AD, notable for his attempt to revive classical pagan traditions and philosophy.
Vigilius
Vigilius served as Bishop of Trent for over two decades and is venerated as a saint for his pastoral work and miracles.
Saichō
Saichō was a Japanese Buddhist monk who introduced the Tendai sect to Japan and laid the foundation for Japanese Buddhism.
George El Mozahem
George El Mozahem was a Coptic Christian youth who became a martyr and saint after refusing to renounce his faith.
Ramiro III
Ramiro III was King of León whose reign saw internal conflicts and external threats during the late 10th century.
Jaromír
Jaromír served as Bishop of Prague and is remembered for restoring ecclesiastical order and defending the church's interests.
Robert
Robert of Hereford was a Norman bishop who oversaw the diocese and supported monastic reforms in 11th-century England.
Anne of Bohemia
Anne of Bohemia was a medieval duchess who played a key role in Silesian politics through her marriage alliances.