30th day events in history

May 30, 70 Siege of Jerusalem: Titus and his Roman legions breach the Second Wall of Jerusalem. The Jewish defenders retreat to the First Wall. The Romans build a circumvallation, cutting down all trees within fifteen kilometres
April 30, 311 The Diocletianic Persecution of Christians in the Roman Empire ends
April 30, 313 Battle of Tzirallum: Emperor Licinius defeats Maximinus II and unifies the Eastern Roman Empire
June 30, 350 Roman usurper Nepotianus, of the Constantinian dynasty, is defeated and killed in Rome by troops of the usurper Magnentius
September 30, 489 Battle of Verona: The Ostrogoths under king Theoderic the Great defeat the forces of Odoacer for the second time at Verona (Northern Italy)
August 30, 526 King Theoderic the Great dies of dysentery at Ravenna; his daughter Amalasuntha takes power as regent for her 10-year old son Athalaric
March 30, 598 Balkan Campaign: The Avars lift the siege at the Byzantine stronghold of Tomis. Their leader Bayan I retreats north of the Danube River after the Avaro-Slavic hordes are decimated by the plague
July 30, 634 Battle of Ajnadayn: Byzantine forces under Theodore are defeated by the Rashidun Caliphate near Beit Shemesh (modern Israel)
October 30, 637 Antioch surrenders to the Muslim forces under Rashidun Caliphate after the Battle of the Iron Bridge
April 30, 642 Chindasuinth is proclaimed king by the Visigothic nobility and bishops
September 30, 737 Battle of the Baggage: Turgesh drive back an Umayyad invasion of Khuttal, follow them south of the Oxus and capture their baggage train
October 30, 758 Guangzhou is sacked by Arab and Persian pirates
July 30, 762 Baghdad is founded by caliph Al-Mansur
January 30, 1018 The Peace of Bautzen is signed between Poland and Germany
December 30, 1066 Granada massacre: A Muslim mob storms the royal palace in Granada, crucifies Jewish vizier Joseph ibn Naghrela and massacres most of the Jewish population of the city
October 30, 1137 Battle of Rignano between Ranulf of Apulia and Roger II of Sicily
October 30, 1270 The Eighth Crusade and siege of Tunis end by an agreement between Charles I of Sicily (brother to King Louis IX of France, who had died months earlier) and the sultan of Tunis
March 30, 1282 The people of Sicily rebel against the Angevin king Charles I, in what becomes known as the Sicilian Vespers
August 30, 1282 Peter III of Aragon, originally traveling with his fleet on a military expedition against the Hafsid Kingdom, ends up in the Sicilian town of Trapani, after he was asked by the inhabitants of Palermo to help in the fight against Charles of Anjou
March 30, 1296 Edward I sacks Berwick-upon-Tweed, during armed conflict between Scotland and England
April 30, 1315 Enguerrand de Marigny is hanged on the public gallows at Montfaucon
October 30, 1340 Portuguese and Castilian forces halt a Marinid invasion at the Battle of Río Salado
August 30, 1363 Beginning date of the Battle of Lake Poyang; the forces of two Chinese rebel leaders — Chen Youliang and Zhu Yuanzhang — are pitted against each other in what is one of the largest naval battles in history, during the last decade of the ailing, Mongol-led Yuan dynasty
May 30, 1381 Beginning of the Peasants' Revolt in England
September 30, 1399 Henry IV is proclaimed King of England
May 30, 1416 The Council of Constance, called by Emperor Sigismund, a supporter of Antipope John XXIII, burns Jerome of Prague following a trial for heresy
July 30, 1419 First Defenestration of Prague: a crowd of radical Hussites kill seven members of the Prague city council
June 30, 1422 Battle of Arbedo between the duke of Milan and the Swiss cantons
May 30, 1431 Hundred Years' War: in Rouen, France, the 19-year-old Joan of Arc is burned at the stake by an English-dominated tribunal. The Roman Catholic Church remembers this day as the celebration of Saint Joan of Arc
May 30, 1434 Hussite Wars: Battle of Lipany – effectively ending the war, Utraquist forces led by Diviš Bořek of Miletínek defeat and almost annihilate Taborite forces led by Prokop the Great
December 30, 1460 Wars of the Roses: Battle of Wakefield
August 30, 1464 Pope Paul II succeeds Pope Pius II as the 211th pope
October 30, 1485 King Henry VII of England is crowned
April 30, 1492 Spain gives Christopher Columbus his commission of exploration
October 30, 1501 Ballet of Chestnuts: A banquet held by Cesare Borgia in the Papal Palace where fifty prostitutes or courtesans are in attendance for the entertainment of the guests
July 30, 1502 Christopher Columbus lands at Guanaja in the Bay Islands off the coast of Honduras during his fourth voyage
May 30, 1510 During the reign of the Zhengde Emperor, Ming Dynasty rebel leader Zhu Zhifan is defeated by commander Qiu Yue, ending the Prince of Anhua rebellion
April 30, 1513 Edmund de la Pole, Yorkist pretender to the English throne, is executed on the orders of Henry VIII
June 30, 1520 Spanish conquistadors led by Hernán Cortés fight their way out of Tenochtitlan
June 30, 1521 Spanish forces defeat a combined French and Navarrese army at the Battle of Noáin during the Spanish conquest of Iberian Navarre
October 30, 1534 English Parliament passes Act of Supremacy, making King Henry VIII head of the English church - a role formerly held by the Pope
May 30, 1536 King Henry VIII of England marries Jane Seymour, a lady-in-waiting to his first two wives
May 30, 1539 In Florida, Hernando de Soto lands at Tampa Bay with 600 soldiers with the goal of finding gold
September 30, 1541 Spanish conquistador Hernando de Soto and his forces enter Tula territory in present-day western Arkansas, encountering fierce resistance
April 30, 1557 Mapuche leader Lautaro is killed by Spanish forces at the Battle of Mataquito in Chile
June 30, 1559 King Henry II of France is mortally wounded in a jousting match against Gabriel de Montgomery
May 30, 1574 Henry III becomes King of France
August 30, 1574 Guru Ram Das becomes the Fourth Sikh Guru/Master
May 30, 1588 The last ship of the Spanish Armada sets sail from Lisbon heading for the English Channel
August 30, 1590 Tokugawa Ieyasu enters Edo Castle. (Traditional Japanese date: August 1, 1590)