May 29
Overview
Holidays & Observances
Army Day(Argentina)
Army Day is a national observance in Argentina honoring the founding of the Argentine Army, celebrated with ceremonies and parades.
Ascension of Bahá'u'lláh(Baháʼí Faith) (Only ifBaháʼí Naw-Rúzfalls on March 21 of theGregorian calendar)
A Baháʼí holy day commemorating the passing of Bahá'u'lláh, observed when Naw-Rúz coincides with March 21 in the Gregorian calendar.
Christianfeast day:
Bona of Pisa, Hypomone(Eastern Orthodox Church), Joseph Gérard, Maximin of Trier, Pope Alexander of Alexandria(Eastern Orthodox Church), Pope Paul VI, Richard Thirkeld, Theodosia of Constantinople(Eastern Orthodox Church), Ursula Ledóchowska, May 29 (Eastern Orthodox liturgics)
Multiple Christian saints and liturgical commemorations are observed on May 29 across various denominations.
International Day of United Nations Peacekeepers(International)
An international day honoring the service and sacrifice of United Nations peacekeepers worldwide.
Oak Apple Day(England),and its related observance:
Castleton Garland Day(Castleton)
A traditional English observance marking the 1660 restoration of the monarchy, celebrated with oak leaves and local festivities.
Veterans Day (Sweden)
An official day in Sweden honoring the service of military veterans and their contributions to peace and security.
Democracy Day (Nigeria)
A national holiday in Nigeria commemorating the transition to civilian rule on May 29, 1999.
Bona of Pisa
Feast day honoring Saint Bona of Pisa, a medieval pilgrim celebrated for her hospitality and care for travelers.
Hypomone(Eastern Orthodox Church)
Events
The Roman emperor Julian defeats the Sasanian army in the Battle of Ctesiphon, under the walls of the Sasanian capital, but is unable to take the city.
Emperor Julian won a significant victory over the Sasanian forces near Ctesiphon but failed to breach the city walls.
Battle of Uclés: Almoravid troops under the command of Tamim ibn Yusuf defeat a Castile and León alliance under the command of Prince Sancho Alfónsez.
Almoravid forces under Tamim ibn Yusuf crushed a Castile and León army at Uclés, delivering a heavy blow to the Christian Reconquista.
Battle of Monte Porzio: A Roman army supporting Pope Alexander III is defeated by Christian of Buch and Rainald of Dassel.
Imperial forces under Christian of Buch defeated a papal army supporting Alexander III at Monte Porzio, shifting the power balance in Rome.
Battle of Legnano: The Lombard League defeats Emperor Frederick I.
The Lombard League achieved a decisive triumph over Emperor Frederick I in the Battle of Legnano, marking a turning point in medieval Italian politics.
Mongol–Jin war: The Mongols entered Kaifeng after a successful siege and began looting in the fallen capital of the Jin dynasty.
Mongol armies breached Kaifeng’s defenses after a relentless siege, capturing and looting the Jin dynasty’s capital.
Philip VI is crowned King of France.
Philip VI was crowned the first Valois king of France, inaugurating a new dynasty and setting the stage for future conflicts.
Battle of Gallipoli: The Venetians under Pietro Loredan defeat a much larger Ottoman fleet off Gallipoli.
Venetian admiral Pietro Loredan led a smaller fleet to victory over the Ottomans at Gallipoli.
Fall of Constantinople: Ottoman armies under Sultan Mehmed II capture Constantinople after a 53-day siege, ending the Roman Empire after over 2,000 years.
Sultan Mehmed II’s forces captured Constantinople after 53 days, ending the Byzantine Empire and reshaping world history.
Battle of Samugarh: decisive battle in the struggle for the throne during the Mughal war of succession (1658–1659).
Aurangzeb defeated his brother Dara Shikoh’s forces at Samugarh, paving his path to the Mughal throne.
Births
Charles
Heir to the Kingdom of Navarre whose contested succession ignited a dynastic conflict in 15th-century Iberia.
Victor
Eldest son of King George of Poděbrady who governed Bohemian lands as Duke of Münsterberg and Count of Glatz.
Antun Vrančić
Croatian archbishop, diplomat, and humanist who influenced ecclesiastical reform in 16th-century Hungary.
George Carew
English general, administrator, and 1st Earl of Totnes known for his military campaigns and governance in Ireland.
Virginia de' Medici
Italian princess of the Medici dynasty, Duchess of Modena and Monferrato noted for her cultural patronage and turbulent court life.
Gottfried Heinrich Graf zu Pappenheim
Bavarian field marshal renowned for his daring cavalry leadership during the Thirty Years' War.
Anne
French princess, famously known as La Grande Mademoiselle, who played a pivotal role in the Fronde and held the title Duchess of Montpensier.
King of England, Scotland and Ireland, whose Restoration of the monarchy in 1660 marked the return of the Stuarts to power.
Humphry Ditton
English mathematician and philosopher, best known for his works on fluxional calculus and philosophical treatises.
Deaths
King of Pamplona from 925 to 931 who strengthened the Basque kingdom and resisted external pressures.
Renauld I
Medieval French noble who served as Count of Nevers and administered his Burgundian territory with feudal diligence.
King of Denmark from 1252 to 1259 who sought to expand royal authority and manage relations with the Hanseatic League.
King of Majorca from 1276 to 1311 who promoted trade and cultural development across his Mediterranean realm.
Pope John VIII of Alexandria
Pope of the Coptic Orthodox Church from 1301 to 1320, recognized for his spiritual leadership under Mamluk rule.
Jens Grand
Archbishop of Lund known for his fierce defense of church autonomy against the Danish crown in the late 13th century.
Founder of the Trastámara dynasty who ruled Castile from 1369 to 1379 and restored stability after civil war.
Philippe de Mézières
French knight and influential writer whose works on chivalry and crusading shaped late medieval thought.
Fourth Ming emperor who reigned briefly from 1424 to 1425 and implemented Confucian reforms.