1930January 1930 January 15 – The Moon moves into its nearest point to Earth, called perigee, at the same time as its fullest phase of the Lunar Cycle. This is the closest moon distance at in recent history, and the next one will be on January 1, 2257, at . January 26 – The Indian National Congress declares this date as Independence Day, or as the day for Poorna Swaraj (Complete Independence). January 28 – The first patent for a field-effect transistor is granted in the United States, to Julius Edgar Lilienfeld.
July 21356 BC – The Temple of Artemis in Ephesus, one of the Seven Wonders of the World, is destroyed by arson. 230 – Pope Pontian succeeds Urban I as the eighteenth pope. After being exiled to Sardinia, he became the first pope to resign his office. 285 – Diocletian appoints Maximian as Caesar and co-ruler. 365 – The 365 Crete earthquake affected the Greek island of Crete with a maximum Mercalli intensity of XI (Extreme), causing a destructive tsunami that affects the coasts of Libya and Egypt, especially Alexandria.
August 28475 – The Roman general Orestes forces western Roman Emperor Julius Nepos to flee his capital city, Ravenna. 489 – Theodoric, king of the Ostrogoths, defeats Odoacer at the Battle of Isonzo, forcing his way into Italy. 632 – Fatimah, daughter of the Islamic prophet Muhammad, dies, with her cause of death being a controversial topic among the Sunni Muslims and Shia Muslims. 663 – Silla–Tang armies crush the Baekje restoration attempt and force Yamato Japan to withdraw from Korea in the Battle of Baekgang.
April 221500 – Portuguese navigator Pedro Álvares Cabral lands in Brazil. 1519 – Spanish conquistador Hernán Cortés establishes a settlement at Veracruz, Mexico. 1529 – Treaty of Zaragoza divides the eastern hemisphere between Spain and Portugal along a line 297.5 leagues () east of the Moluccas. 1809 – The second day of the Battle of Eckmühl: The Austrian army is defeated by the First French Empire army led by Napoleon and driven over the Danube in Regensburg.
December 28418 – A papal election begins, resulting in the election of Pope Boniface I. 457 – Majorian is acclaimed as Western Roman emperor. 484 – Alaric II succeeds his father Euric and becomes king of the Visigoths. He establishes his capital at Aire-sur-l'Adour (Southern Gaul). 893 – An earthquake destroys the city of Dvin, Armenia. 1065 – Edward the Confessor's Romanesque monastic church at Westminster Abbey is consecrated. 1308 – The reign of Emperor Hanazono of Japan begins.
May 61527 – Spanish and German troops sack Rome; many scholars consider this the end of the Renaissance. 1536 – The Siege of Cuzco commences, in which Incan forces attempt to retake the city of Cuzco from the Spanish. 1541 – King Henry VIII orders English-language Bibles be placed in every church. In 1539 the Great Bible would be provided for this purpose. 1542 – Francis Xavier reaches Old Goa, the capital of Portuguese India at the time. 1594 – The Dutch city of Coevorden held by the Spanish, falls to a Dutch and English force.
July 5328 – The official opening of Constantine's Bridge built over the Danube between Sucidava (Corabia, Romania) and Oescus (Gigen, Bulgaria) by the Roman architect Theophilus Patricius. 1316 – The Burgundian and Majorcan claimants of the Principality of Achaea meet in the Battle of Manolada. 1594 – Portuguese forces under the command of Pedro Lopes de Sousa begin an unsuccessful invasion of the Kingdom of Kandy during the Campaign of Danture in Sri Lanka. 1610 – John Guy sets sail from Bristol with 39 other colonists for Newfoundland.
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 271358 – The Republic of Ragusa is founded. 1497 – Cornish rebels Michael An Gof and Thomas Flamank are executed at Tyburn, London, England. 1499 – Amerigo Vespucci sights what is now Amapá State in Brazil. 1556 – The thirteen Stratford Martyrs are burned at the stake near London for their Protestant beliefs. 1743 – In the Battle of Dettingen, George II becomes the last reigning British monarch to participate in a battle. 1760 – Anglo-Cherokee War: Cherokee warriors defeat British forces at the Battle of Echoee near present-day Otto, North Carolina.
July 25306 – Constantine I is proclaimed Roman emperor by his troops. 315 – The Arch of Constantine is completed near the Colosseum in Rome to commemorate Constantine I's victory over Maxentius at the Milvian Bridge. 677 – Climax of the Siege of Thessalonica by the Slavs in a three-day assault on the city walls. 864 – The Edict of Pistres of Charles the Bald orders defensive measures against the Vikings. 918 – Wang Geon becomes King of Goryeo after overthrowing Gung Ye in a coup the previous day 1137 – Eleanor of Aquitaine marries Prince Louis, later King Louis VII of France, at the Cathedral of Saint-André in Bordeaux.