1484

January–March

• January 15 - In France, the Estates General, a consultative assembly of 855 delegates representing the three economic classes — the First Estate, Second Estate and— for the first time, the Third Estate is convened for the first time since 1468. The convening of the Estates General of 1484 at Tours has been ordered by Anne of France, the mother of and regent for the 13-year-old King Charles VIII since the death of King Louis XI, with the goal of designating the regent during Charles's minority. Although King Louis had designated Anne and her husband, Pierre de Beaujeu, to serve as regents, Louis, Duke of Orleans, the second cousin of the late King, seeks approval from the Estates General for the regency. The session of the Estates General becomes a call for reform of the laws of France.
• January 23 - King Richard III of England assembles his first, and only Parliament, opening a 29-day session.
• February 5 - The Great Bell of Dhammazedi, at 293.4 metric tons the largest bell ever created, is cast from bronze at Dagon in the Hanthawaddy kingdom by order of King Dhammazedi. The casting comes despite advice from the royal astrologer that the date is inappropriate, and the bell is noted for its unpleasant tone. The bell will be stolen from the Shwedagon Pagoda in 1608 by Arakan mercenaries commanded by the Portuguese warlord Filipe de Brito e Nicote, but skin, into the Bago and Yangon Rivers while it is being transported on de Brito's ship.
• February 9 - At the Estates General, the nobleman Philippe Pot, representative of the Second Estate, delivers a famous speech calling upon reforms in the structure of government of France. His speech is successful in persuading the Estates to endorse the continuing regency of Anne and Pierre Beaujeu, but also leads to numerous recommendations for reform and alarms the royal government.
• February 20 - At the close of the English Parliament session, King Richard III gives royal assent to Titulus Regius ; the Duke of Albany Act, an arrest warrant for all person who made treasonable assistance to the King's rebellious brother, Alexander, Duke of Albany; and the two Barratry Acts, prohibiting "the having of mone furth of the Realme" to the Court of Rome.
• March 22 - The kingdoms of France and Scotland renew the Auld Alliance, with the Lord of Aubigny signing on behalf of France.
• March 26 - William Caxton, the first printer of books in English, prints his translation of Aesop's Fables in London.

  April–June

• April 19 - Muhammad Shah Mir becomes the new Sultan of Kashmir in India, succeeding Hasan Khan.
• May 11 - The Kingdom of Hungary defeats the army of the Holy Roman Empire at the Battle of Leitzersdorf.
• May 30 - The coronation of the 13-year-old son of the late Louis XI, Charles the Affable, as King of France takes place at Reims.
• June 14 - Joanes III is proclaimed by his fiancée, Queen Katalina, to be her co-ruler of the Kingdom of Navarre at Pamplona, now part of the Basque region of Spain.
• June 22 - The first known book printed by a woman, Anna Rügerin, is an edition of Eike of Repgow's compendium of customary law, the Sachsenspiegel, produced in Augsburg.

  July–September

• July 6 - Portuguese sea captain Diogo Cão finds the mouth of the Congo River.
• July 22 - Battle of Lochmaben Fair: A 500-man raiding party led by Alexander Stewart, Duke of Albany, and James Douglas, 9th Earl of Douglas, is defeated by forces loyal to Albany's brother James III of Scotland; Douglas is captured.
• August 7 - The Treaty of Bagnolo is signed, ending the War of Ferrara fought in Italy between the Republic of Venice and the Duchy of Ferrara after two years. Ferrara loses most of its territories which Venice had conquered north of the River Po, while Ferrara's Duke Ercole I d'Este regains his territories in Ariano nel Polesine, Corbola, Adria, Melara, Castelnovo Bariano and Ficarolo.
• August 29 - Giovanni Battista Cybo, Bishop of Santa Cecilia in Trastevere, is elected to succeed the late Pope Sixtus IV as the leader of the Roman Catholic Church, and takes the regnal name of Pope Innocent VIII as, the 213th pope.
• September 21 - Treaty of Nottingham: A three-year truce between the kingdoms of England and Scotland is signed.

  October–December

• October 31 - The "White Elephant War", which had started in 1479 with the invasion of the Kingdom of Lan Xang by the Dai Viet Empire with the Vietnamese withdrawing their troops and failing to conquer the Laotians.
• November 23 - Louis, Duke of Orleans a contender for the French throne, signs a treaty with François II, Duke of Brittany, with an agreement for the marriage of the Duke's 7-year-old daughter, Anne of Brittany to Louis, with a goal of Louis having control of Brittany and of France. The proposed marriage, however, is contingent upon the annulment of Louis' existing marriage to Joan of France, Duchess of Berry.
• December 5 - Pope Innocent VIII issues the Papal bull Summis desiderantes affectibus, giving the Inquisition a mission to hunt heretics and witches in Germany, led by Heinrich Kramer and Jacob Sprenger.

  Date unknown

• The first sugar mill becomes operational in the Gran Canaria.
• The first cuirassier units are formed in Austria.
• The King of Portugal appoints a commission of mathematicians to perfect tables, to help seamen find their latitude.
• Maximilian I, Duke of Burgundy, orders foreign merchants to leave Bruges. Most merchants move to Antwerp, greatly contributing to its growth as an international trading center.