4th day events in history

October 4, 23 Rebels capture and sack the Chinese capital Chang'an during a peasant rebellion. They kill and decapitate the emperor, Wang Mang, two days later
March 4, 51 Nero, later to become Roman Emperor, is given the title princeps iuventutis (head of the youth)
August 4, 70 The destruction of the Second Temple in Jerusalem by the Romans
February 4, 211 Roman Emperor Septimius Severus dies at Eboracum (modern York, England) while preparing to lead a campaign against the Caledonians. He leaves the empire in the control of his two quarrelling sons
March 4, 306 Martyrdom of Saint Adrian of Nicomedia
August 4, 367 Gratian, son of Roman Emperor Valentinian I, is named co-Augustus by his father and associated to the throne aged eight
July 4, 414 Emperor Theodosius II, age 13, yields power to his older sister Aelia Pulcheria, who reigned as regent and proclaimed herself empress (Augusta) of the Eastern Roman Empire
September 4, 476 Romulus Augustulus, last emperor of the Western Roman Empire, is deposed when Odoacer proclaims himself "King of Italy", thus ending the Western Roman Empire
August 4, 598 Goguryeo-Sui War: Emperor Wéndi of Sui orders his youngest son, Yang Liang (assisted by the co-prime minister Gao Jiong), to conquer Goguryeo (Korea) during the Manchurian rainy season, with a Chinese army and navy
October 4, 610 Heraclius arrives by ship from Africa at Constantinople, overthrows Byzantine Emperor Phocas and becomes Emperor
September 4, 626 Li Shimin, posthumously known as Emperor Taizong of Tang, assumes the throne over the Tang dynasty of China
February 4, 634 Battle of Dathin: Rashidun forces under Yazid ibn Abi Sufyan defeat the Christian Arabs around Gaza (Palestine)
December 4, 771 Austrasian king Carloman I dies, leaving his brother Charlemagne king of the now complete Frankish Kingdom
July 4, 836 Pactum Sicardi, a peace treaty between the Principality of Benevento and the Duchy of Naples, is signed
March 4, 852 Croatian Knyaz Trpimir I issues a statute, a document with the first known written mention of the Croats name in Croatian sources
January 4, 871 Battle of Reading: Æthelred of Wessex fights, and is defeated by, a Danish invasion army
March 4, 932 Translation of the relics of martyr Wenceslaus I, Duke of Bohemia, Prince of the Czechs
February 4, 960 The coronation of Zhao Kuangyin as Emperor Taizu of Song, initiating the Song Dynasty period of China that would last more than three centuries
July 4, 993 Ulrich of Augsburg is canonized as a saint
June 4, 1039 Henry III becomes Holy Roman Emperor
July 4, 1054 A supernova is seen by Chinese, Arab and possibly Amerindian observers near the star Zeta Tauri. For several months it remains bright enough to be seen during the day. Its remnants form the Crab Nebula
December 4, 1110 The Kingdom of Jerusalem captures Sidon
July 4, 1120 Jordan II of Capua is anointed as prince after his infant nephew's death
April 4, 1147 First historical record of Moscow
March 4, 1152 Frederick I Barbarossa is elected King of the Germans
February 4, 1169 A strong earthquake struck the Ionian coast of Sicily, causing tens of thousands of injuries and deaths, especially in Catania
July 4, 1187 The Crusades: Battle of Hattin: Saladin defeats Guy of Lusignan, King of Jerusalem
October 4, 1227 Assassination of Caliph al-Adil
March 4, 1238 The Battle of the Sit River is fought in the northern part of the present-day Yaroslavl Oblast of Russia between the Mongol hordes of Batu Khan and the Russians under Yuri II of Vladimir-Suzdal during the Mongol invasion of Rus'
July 4, 1253 Battle of West-Capelle: John I of Avesnes defeats Guy of Dampierre
May 4, 1256 The Augustinian monastic order is constituted at the Lecceto Monastery when Pope Alexander IV issues a papal bull Licet ecclesiae catholicae
December 4, 1259 Kings Louis IX of France and Henry III of England agree to the Treaty of Paris, in which Henry renounces his claims to French-controlled territory on continental Europe (including Normandy) in exchange for Louis withdrawing his support for English rebels
September 4, 1260 The Sienese Ghibellines, supported by the forces of Manfred, King of Sicily, defeat the Florentine Guelphs at Montaperti
August 4, 1265 Second Barons' War: Battle of Evesham – the army of Prince Edward (the future king Edward I of England) defeats the forces of rebellious barons led by Simon de Montfort, 6th Earl of Leicester, killing de Montfort and many of his allies
April 4, 1287 King Wareru founds Kingdom of Ramannadesa, and proclaims independence from Pagan Empire
October 4, 1302 A peace treaty between the Byzantine Empire and the Republic of Venice ends the Byzantine–Venetian War (1296–1302)
August 4, 1327 First War of Scottish Independence: James Douglas leads a raid into Weardale and almost kills Edward III of England
March 4, 1351 Ramathibodi becomes King of Siam
July 4, 1359 Francesco II Ordelaffi of Forlì surrenders to the Papal commander Gil de Albornoz
October 4, 1363 End of the Battle of Lake Poyang; the Chinese rebel forces of Zhu Yuanzhang defeat that of his rival, Chen Youliang, in one of the largest naval battles in history
March 4, 1386 Władysław II Jagiełło (Jogaila) is crowned King of Poland
June 4, 1411 King Charles VI granted a monopoly for the ripening of Roquefort cheese to the people of Roquefort-sur-Soulzon as they had been doing for centuries
May 4, 1415 Religious reformers John Wycliffe and Jan Hus are condemned as heretics at the Council of Constance
November 4, 1429 Armagnac–Burgundian Civil War: Joan of Arc liberates Saint-Pierre-le-Moûtier
May 4, 1436 Assassination of the Swedish rebel (later national hero) Engelbrekt Engelbrektsson
February 4, 1454 In the Thirteen Years' War, the Secret Council of the Prussian Confederation sends a formal act of disobedience to the Grand Master
July 4, 1456 Ottoman wars in Europe: The Siege of Nándorfeqhérvár (Belgrade) begins
March 4, 1461 Wars of the Roses in England: Lancastrian King Henry VI is deposed by his House of York cousin, who then becomes King Edward IV
May 4, 1471 Wars of the Roses: The Battle of Tewkesbury: Edward IV defeats a Lancastrian Army and kills Edward, Prince of Wales
September 4, 1479 The Treaty of Alcáçovas is signed by the Catholic Monarchs of Castile and Aragon on one side and Afonso V and his son, Prince John of Portugal