September 20
Overview
Holidays & Observances
Christianfeast day:
Agapitus(Western Christianity), Eustace(Western Christianity), Evilasius, Fausta of Cyzicus, Glycerius of Milan, Jean-Charles Cornay(one ofVietnamese Martyrs), John Coleridge Patteson(commemoration,Anglicanism), José Maria de Yermo y Parres, Korean Martyrs, includingAndrew Kim TaegonandLaurent-Marie-Joseph Imbert, Theodore, Philippa and companions, Vincent Madelgarius (Maelceadar), September 20 (Eastern Orthodox liturgics)
A range of Christian saints are honored on this day across Western and Eastern traditions, marking various feast days.
Constitution Day (Nepal)
Constitution Day in Nepal commemorates the adoption of the nation's constitution, a milestone in its democratic history.
Independence DayofSouth Ossetia(not fully recognized)
South Ossetia observes its Independence Day, marking its declaration of independence on September 20th.
National Youth Day (Thailand)
Thailand celebrates National Youth Day to empower and inspire its younger generations.
Oil Workers' Day(Azerbaijan)
Oil Workers' Day honors the contribution of Azerbaijan’s oil industry and its workforce.
Universal Children's Day (Germany)
Universal Children's Day promotes the welfare and rights of children, recognized worldwide and in Germany.
Agapitus(Western Christianity)
Eustace(Western Christianity)
Evilasius
Events
Agnes of Poitou and Andrew I of Hungary meet to negotiate about the border territory of Burgenland.
Empress Agnes of Poitou and King Andrew I of Hungary met in 1058 to negotiate the border of Burgenland. Their talks shaped the frontier between the Holy Roman Empire and Hungary.
At the Battle of Fulford, Harald Hardrada defeats earls Morcar and Edwin.
In 1066, Viking leader Harald Hardrada achieved victory at the Battle of Fulford, defeating the English earls Morcar and Edwin near York.
Saladin begins the Siege of Jerusalem.
In 1187, Sultan Saladin initiated the Siege of Jerusalem, seeking to reclaim the city from Crusader rule after his victory at Hattin.
The Great Prussian Uprising among the old Prussians begins against the Teutonic Knights.
In 1260, Baltic Prussian tribes launched the Great Prussian Uprising against the expansion of the Teutonic Knights.
Cardinal Robert of Geneva is elected as Pope Clement VII, beginning the Papal schism.
In 1378, Cardinal Robert of Geneva was elected as Pope Clement VII, igniting the Western Schism within the Catholic Church.
The Nankai tsunami washes away the building housing the Great Buddha at Kōtoku-in; it has been located outside ever since.
In 1498, a massive Nankai tsunami destroyed the hall sheltering the Great Buddha at Kōtoku-in, leaving the bronze statue standing in the open air.
Ferdinand Magellan sets sail from Sanlúcar de Barrameda with about 270 men on his expedition which ultimately culminates in the first circumnavigation of the globe.
In 1519, Portuguese navigator Ferdinand Magellan departed Spain with five ships and 270 men, embarking on the first expedition to circumnavigate the globe.
A number of conspirators in the Babington Plot are hanged, drawn and quartered.
In 1586, key conspirators of the Babington Plot against Queen Elizabeth I were executed by hanging, drawing, and quartering in a public spectacle.
The Spanish-held Dutch town of Grave capitulates to a besieging Dutch and English army under the command of Maurice of Orange.
In 1602, the fortress town of Grave surrendered to an Anglo-Dutch force led by Maurice of Orange during the Eighty Years' War.
Births
Kyunyeo
A Korean poet and scholar of the early Goryeo period, known for his elegant verse and contributions to court literature.
The 80th Emperor of Japan who reigned during the late Heian period, known for the rising influence of the Taira clan.
Philipp I
A 15th-century German nobleman who ruled the County of Hanau-Münzenberg in the Holy Roman Empire.
Arthur
The eldest son of King Henry VII and heir to the Tudor throne, remembered for his promising potential and early death.
Philip III
A German count who led Nassau-Weilburg during the 16th century and navigated the challenges of the Reformation era.
Philipp IV
A 16th-century German noble who governed Hanau-Lichtenberg and oversaw regional development.
Gottfried Scheidt
A German Baroque organist and composer known for his liturgical works and pedagogy.
A prominent Protestant military commander during the Thirty Years' War, nicknamed the 'Mad Halberstadter.'
Jean-Jacques Olier
A French Catholic priest and mystic who founded the Society of Saint-Sulpice and reformed clergy education.
Deaths
Gozbald
Gozbald was bishop of Würzburg in the mid-9th century who strengthened the church in Franconia through his leadership and diplomatic skills.
Hermann II
Hermann II was Count Palatine of Lotharingia and a powerful 11th-century noble in the Holy Roman Empire.
Adelog of Hildesheim
Adelog of Hildesheim was a 12th-century German bishop known for his ecclesiastical reforms and building projects.
Conrad II of Salzwedel
Conrad II of Salzwedel was a 13th-century German nobleman who also served as a bishop, blending secular and ecclesiastical power.
Michael of Chernigov was a Rus' prince who ruled Chernigov and Kiev and became a martyr resisting Mongol demands.
Jan Prandota
Jan Prandota was the Bishop of Kraków in the mid-13th century who guided the diocese through post-Mongol reconstruction.
Ibn Taymiyyah
Ibn Taymiyyah was a renowned Syrian theologian and scholar whose works have influenced Islamic thought for centuries.
Louis I
Louis I was the Duke of Anjou and a French prince who played a key role in 14th-century European politics.
Frederick I
Frederick I was the first Elector of Brandenburg from the Hohenzollern dynasty who laid the groundwork for Brandenburg-Prussia.