July 10138 – Emperor Hadrian of Rome dies of heart failure at his residence on the bay of Naples, Baiae; he is buried at Rome in the Tomb of Hadrian beside his late wife, Vibia Sabina. 645 – Isshi Incident: Prince Naka-no-Ōe and Fujiwara no Kamatari assassinate Soga no Iruka during a coup d'état at the imperial palace. 988 – The Norse King Glúniairn recognises Máel Sechnaill mac Domnaill, High King of Ireland, and agrees to pay taxes and accept Brehon Law; the event is considered to be the founding of the city of Dublin.
September 16681 – Pope Honorius I is posthumously excommunicated by the Sixth Ecumenical Council. 1400 – Owain Glyndŵr is declared Prince of Wales by his followers. 1620 – A determined band of 35 religious dissenters – Pilgrims set sail for Virginia from Plymouth, England in the Mayflower, jubilant at the prospect of practicing their unorthodox brand of worship in the New World. 1701 – James Francis Edward Stuart, sometimes called the "Old Pretender", becomes the Jacobite claimant to the thrones of England and Scotland.
February 14748 – Abbasid Revolution: The Hashimi rebels under Abu Muslim Khorasani take Merv, capital of the Umayyad province Khorasan, marking the consolidation of the Abbasid revolt. 842 – Charles the Bald and Louis the German swear the Oaths of Strasbourg in the French and German languages. 1014 – Pope Benedict VIII crowns Henry of Bavaria, King of Germany and of Italy, as Holy Roman Emperor. 1130 – The troubled 1130 papal election exposes a rift within the College of Cardinals.
November 131002 – English king Æthelred II orders the killing of all Danes in England, known today as the St. Brice's Day massacre. 1093 – Battle of Alnwick: in an English victory over the Scots, Malcolm III of Scotland, and his son Edward, are killed. 1160 – Louis VII of France marries Adela of Champagne. 1642 – First English Civil War: Battle of Turnham Green: The Royalist forces withdraw in the face of the Parliamentarian army and fail to take London.
August 8685 BC – Spring and Autumn period: Battle of Qianshi: Upon the death of the previous Duke of Qi, Gongsun Wuzhi, Duke Zhuang of Lu sends an army into the Duchy of Qi to install the exiled Qi prince Gongzi Jiu as the new Duke of Qi — but is defeated at Qianshi by Jiu’s brother and rival claimant, the newly inaugurated Duke Huan of Qi. 870 – Treaty of Meerssen: King Louis the German and his half-brother Charles the Bald partition the Middle Frankish Kingdom into two larger east and west divisions.
January 1569 – Otho seizes power in Rome, proclaiming himself Emperor of Rome, beginning a reign of only three months. 1541 – King Francis I of France gives Jean-François Roberval a commission to settle the province of New France (Canada) and provide for the spread of the "Holy Catholic faith". 1559 – Elizabeth I is crowned Queen of England and Ireland in Westminster Abbey, London. 1582 – Truce of Yam-Zapolsky: Russia cedes Livonia to the Polish–Lithuanian Commonwealth. 1759 – The British Museum opens to the public.
December 21244 – Pope Innocent IV arrives at Lyon for the First Council of Lyon. 1409 – The University of Leipzig opens. 1697 – St Paul's Cathedral, rebuilt to the design of Sir Christopher Wren following the Great Fire of London, is consecrated. 1763 – Dedication of the Touro Synagogue, in Newport, Rhode Island, the first synagogue in what will become the United States. 1766 – Swedish parliament approves the Swedish Freedom of the Press Act and implements it as a ground law, thus being first in the world with freedom of speech.
March 191277 – The Byzantine–Venetian treaty of 1277 is concluded, stipulating a two-year truce and renewing Venetian commercial privileges in the Byzantine Empire. 1279 – A Mongol victory at the Battle of Yamen ends the Song dynasty in China. 1284 – The Statute of Rhuddlan incorporates the Principality of Wales into England. 1452 – Frederick III of Habsburg is the last Holy Roman Emperor crowned by medieval tradition in Rome by Pope Nicholas V. 1563 – The Edict of Amboise is signed, ending the first phase of the French Wars of Religion and granting certain freedoms to the Huguenots.
December 1800 – A council is convened in the Vatican, at which Charlemagne is to judge the accusations against Pope Leo III. 1420 – Henry V of England enters Paris alongside his father-in-law King Charles VI of France. 1577 – Courtiers Christopher Hatton and Thomas Heneage are knighted by Queen Elizabeth I of England. 1640 – End of the Iberian Union: Portugal acclaims as King João IV of Portugal, ending 59 years of personal union of the crowns of Portugal and Spain and the end of the rule of the Philippine Dynasty.
April 10428 – Nestorius becomes the Patriarch of Constantinople. 837 – Halley's Comet makes its closest approach to Earth at a distance equal to 0.0342 AU (5.1 million kilometres/3.2 million miles). 1407 – Deshin Shekpa, 5th Karmapa Lama visits the Ming dynasty capital at Nanjing and is awarded the title "Great Treasure Prince of Dharma". 1500 – Ludovico Sforza is captured by Swiss troops at Novara and is handed over to the French. 1545 – The settlement of Villa Imperial de Carlos V (now the city of Potosí) in Bolivia is founded after the discovery of huge silver deposits in the area.