July 4362 BC – Battle of Mantinea: The Thebans, led by Epaminondas, defeated the Spartans. 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. 836 – Pactum Sicardi, a peace treaty between the Principality of Benevento and the Duchy of Naples, is signed. 993 – Ulrich of Augsburg is canonized as a saint. 1054 – A supernova, called SN 1054, is seen by Chinese Song dynasty, Arab, and possibly Amerindian observers near the star Zeta Tauri.
July 6371 BC – The Battle of Leuctra shatters Sparta's reputation of military invincibility. 640 – Battle of Heliopolis: The Muslim Arab army under 'Amr ibn al-'As defeat the Byzantine forces near Heliopolis (Egypt). 1253 – Mindaugas is crowned King of Lithuania. 1348 – Pope Clement VI issues a papal bull protecting the Jews accused of having caused the Black Death. 1411 – Ming China's Admiral Zheng He returns to Nanjing after the third treasure voyage and presents the Sinhalese king, captured during the Ming–Kotte War, to the Yongle Emperor.
July 71124 – The city of Tyre falls to the Venetian Crusade after a siege of nineteen weeks. 1456 – A retrial verdict acquits Joan of Arc of heresy 25 years after her execution. 1520 – Spanish conquistadores defeat a larger Aztec army at the Battle of Otumba. 1534 – Jacques Cartier makes his first contact with aboriginal peoples in what is now Canada. 1575 – The Raid of the Redeswire is the last major battle between England and Scotland. 1585 – The Treaty of Nemours abolishes tolerance to Protestants in France.
June 9411 BC – The Athenian coup succeeds, forming a short-lived oligarchy. 53 – The Roman emperor Nero marries Claudia Octavia. 68 – Nero dies by suicide after quoting Vergil's Aeneid, thus ending the Julio-Claudian dynasty and starting the civil war known as the Year of the Four Emperors. 721 – Odo of Aquitaine defeats the Moors in the Battle of Toulouse. 747 – Abbasid Revolution: Abu Muslim Khorasani begins an open revolt against Umayyad rule, which is carried out under the sign of the Black Standard.
July 81099 – Some 15,000 starving Christian soldiers begin the siege of Jerusalem by marching in a religious procession around the city as its Muslim defenders watch. 1283 – Roger of Lauria, commanding the Aragonese fleet, defeats an Angevin fleet sent to put down a rebellion on Malta. 1497 – Vasco da Gama sets sail on the first direct European voyage to India. 1579 – Our Lady of Kazan, a holy icon of the Russian Orthodox Church, is discovered underground in the city of Kazan, Tatarstan.
July 131174 – William I of Scotland, a key rebel in the Revolt of 1173–74, is captured at Alnwick by forces loyal to Henry II of England. 1249 – Coronation of Alexander III as King of Scots. 1260 – The Livonian Order suffers its greatest defeat in the 13th century in the Battle of Durbe against the Grand Duchy of Lithuania 1558 – Battle of Gravelines: In France, Spanish forces led by Count Lamoral of Egmont defeat the French forces of Marshal Paul de Thermes at Gravelines. 1573 – Eighty Years' War: The Siege of Haarlem ends after seven months.
July 26657 – First Fitna: In the Battle of Siffin, troops led by Ali ibn Abu Talib clash with those led by Muawiyah I. 811 – Battle of Pliska: Byzantine Emperor Nikephoros I is killed and his heir Staurakios is seriously wounded. 920 – Rout of an alliance of Christian troops from Navarre and Léon against the Muslims at the Battle of Valdejunquera. 1309 – The Holy Roman Emperor Henry VII is recognized King of the Romans by Pope Clement V. 1509 – The Emperor Krishnadevaraya ascends to the throne, marking the beginning of the regeneration of the Vijayanagara Empire.
January 22613 – Eight-month-old Constantine is crowned as co-emperor (Caesar) by his father Heraclius at Constantinople. 871 – Battle of Basing: The West Saxons led by King Æthelred I are defeated by the Danelaw Vikings at Basing. 1506 – The first contingent of 150 Swiss Guards arrives at the Vatican. 1517 – The Ottoman Empire under Selim I defeats the Mamluk Sultanate and captures present-day Egypt at the Battle of Ridaniya. 1555 – The Ava Kingdom falls to the Taungoo Dynasty in what is now Myanmar.
July 1270 – The armies of Titus attack the walls of Jerusalem after a six-month siege. Three days later they breach the walls, which enables the army to destroy the Second Temple. 927 – King Constantine II of Scotland, King Hywel Dda of Deheubarth, Ealdred of Bamburgh and King Owain of the Cumbrians accepted the overlordship of King Æthelstan of England, leading to seven years of peace in the north. 1191 – Third Crusade: Saladin's garrison surrenders to Philip Augustus, ending the two-year siege of Acre.
January 19379 – Emperor Gratian elevates Flavius Theodosius at Sirmium to Augustus, and gives him authority over all the eastern provinces of the Roman Empire. 649 – Conquest of Kucha: The forces of Kucha surrender after a forty-day siege led by Tang dynasty general Ashina She'er, establishing Tang control over the northern Tarim Basin in Xinjiang. 1419 – Hundred Years' War: Rouen surrenders to Henry V of England, completing his reconquest of Normandy. 1511 – The Italian Duchy of Mirandola surrenders to the Pope.
