January 1627 BC – Gaius Julius Caesar Octavianus is granted the title Augustus by the Roman Senate, marking the beginning of the Roman Empire. 378 – General Siyaj K'ak' conquers Tikal, enlarging the domain of King Spearthrower Owl of Teotihuacán. 550 – Gothic War: The Ostrogoths, under King Totila, conquer Rome after a long siege, by bribing the Isaurian garrison. 929 – Emir Abd-ar-Rahman III establishes the Caliphate of Córdoba. 1120 – Crusades: The Council of Nablus is held, establishing the earliest surviving written laws of the Crusader Kingdom of Jerusalem.
March 291430 – The Ottoman Empire under Murad II captures Thessalonica from the Republic of Venice. 1461 – Battle of Towton: Edward of York defeats Queen Margaret to become King Edward IV of England, bringing a temporary stop to the Wars of the Roses. 1549 – The city of Salvador, Bahia, the first capital of Brazil, is founded. 1632 – Treaty of Saint-Germain is signed returning Quebec to French control after the English had seized it in 1629. 1792 – King Gustav III of Sweden dies after being shot in the back at a midnight masquerade ball at Stockholm's Royal Opera 13 days earlier.
August 19295 BC – The first temple to Venus, the Roman goddess of love, beauty and fertility, is dedicated by Quintus Fabius Maximus Gurges during the Third Samnite War. 43 BC – Gaius Julius Caesar Octavianus, later known as Augustus, compels the Roman Senate to elect him Consul. 947 – Abu Yazid, a Kharijite rebel leader, is defeated and killed in the Hodna Mountains in modern-day Algeria by Fatimid forces. 1153 – Baldwin III of Jerusalem takes control of the Kingdom of Jerusalem from his mother Melisende, and also captures Ascalon.
August 3070 – Titus ends the siege of Jerusalem after destroying Herod's Temple. 1282 – Peter III of Aragon lands at Trapani to intervene in the War of the Sicilian Vespers. 1363 – The five-week Battle of Lake Poyang begins, in which the forces of two Chinese rebel leaders (Chen Youliang and Zhu Yuanzhang) meet to decide who will supplant the Yuan dynasty. 1420 – A 9.4 MS-strong earthquake shakes Chile's Atacama Region causing tsunamis in Chile as well as Hawaii and Japan. 1464 – Pope Paul II succeeds Pope Pius II as the 211th pope.
August 948 BC – Caesar's Civil War: Battle of Pharsalus: Julius Caesar decisively defeats Pompey at Pharsalus and Pompey flees to Egypt. 378 – Gothic War: Battle of Adrianople: A large Roman army led by Emperor Valens is defeated by the Visigoths. Valens is killed along with over half of his army. 1173 – Construction of the campanile of the Cathedral of Pisa (now known as the Leaning Tower of Pisa) begins; it will take two centuries to complete. 1329 – Quilon, the first Indian Christian Diocese, is erected by Pope John XXII; the French-born Jordanus is appointed the first Bishop.
May 271096 – Count Emicho enters Mainz, where his followers massacre Jewish citizens. At least 600 Jews are killed. 1120 – Richard III of Capua is anointed as Prince two weeks before his untimely death. 1153 – Malcolm IV becomes King of Scotland. 1199 – John is crowned King of England. 1257 – Richard of Cornwall, and his wife, Sanchia of Provence, are crowned King and Queen of the Germans at Aachen Cathedral. 1644 – Manchu regent Dorgon defeats rebel leader Li Zicheng of the Shun dynasty at the Battle of Shanhai Pass, allowing the Manchus to enter and conquer the capital city of Beijing.
June 16363 – Emperor Julian marches back up the Tigris and burns his fleet of supply ships. During the withdrawal, Roman forces suffer several attacks from the Persians. 632 – Yazdegerd III ascends the throne as king (shah) of the Persian Empire. He becomes the last ruler of the Sasanian dynasty (modern Iran). 1407 – Ming–Hồ War: Retired King Hồ Quý Ly and his son King Hồ Hán Thương of Hồ dynasty are captured by the Ming armies. 1487 – Battle of Stoke Field: King Henry VII of England defeats the leaders of a Yorkist rebellion in the final engagement of the Wars of the Roses.
July 281364 – Troops of the Republic of Pisa and the Republic of Florence clash in the Battle of Cascina. 1540 – Henry VIII of England marries his fifth wife, Catherine Howard. 1571 – La Laguna encomienda, known today as the Laguna province in the Philippines, is founded by the Spaniards as one of the oldest encomiendas (provinces) in the country. 1635 – In the Eighty Years' War, the Spanish capture the strategic Dutch fortress of Schenkenschans. 1656 – Second Northern War: Battle of Warsaw begins.
October 5610 – Heraclius arrives at Constantinople, kills Byzantine Emperor Phocas, and becomes emperor. 816 – King Louis the Pious is crowned emperor of the Holy Roman Empire by the Pope. 869 – The Fourth Council of Constantinople is convened to depose patriarch Photios I. 1143 – With the signing of the Treaty of Zamora, King Alfonso VII of León and Castile recognises Portugal as a Kingdom. 1450 – Louis IX, Duke of Bavaria expels Jews from his jurisdiction. 1607 – Assassins attempt to kill Venetian statesman and scientist Paolo Sarpi.
July 271054 – Siward, Earl of Northumbria, invades Scotland and defeats Macbeth, King of Scotland, somewhere north of the Firth of Forth. 1189 – Friedrich Barbarossa arrives at Niš, the capital of Serbian King Stefan Nemanja, during the Third Crusade. 1202 – Georgian–Seljuk wars: At the Battle of Basian the Kingdom of Georgia defeats the Sultanate of Rum. 1214 – Battle of Bouvines: Philip II of France decisively defeats Imperial, English and Flemish armies, effectively ending John of England's Angevin Empire.
