1450
Year 1450 was a common year starting on Thursday of the Julian calendar.
Events
January–March
- January 19 - The Jingtai Era begins in China under the Emperor Daizong, and the Zhengtong Era ends after 14 years.
- January 19 - King James II of Scotland gives royal assent to numerous acts passed by the Scottish Parliament in 1449, including the Leases Act 1449, the Coinage Act, the Parties Summoned to King's Council Act and the Statute Law Revision Act.
- February 7 - John de la Pole, 2nd Duke of Suffolk, marries Lady Margaret Beaufort.
- February 26 - Francesco Sforza enters Milan after a siege, becoming Duke of the city-state, and founding a dynasty that will rule Milan for a century.
- March 10 - Colonization of Terceira Island by Portugal begins as Dom Henrique, om Navigador (known in English accounds as "Prince Henry the Navigator" assigns jurisdiction to Jácome de Bruges.
- March 11 - The First Margrave War comes to an end in Germany as Albrecht III Achilles, Elector of Brandenburg, is defeated by Nuremberg troops a t the battle of Pillenreuther Reiher.
- March 15 - English commander Thomas Kyriell and 2,500 soldiers land at Cherbourg in English-occupied France, where they join another 1,800 English troops recruited by the Duke of Somerset from the garrisons at Bayeux, Caen and Vire.
- March 25 - Francesco I Sforza becomes the Duke of Milan, restoring the Duchy of Milan and bringing an end to the Golden Ambrosian Republic that had governed Milan.
April–June
- April 8 - At the Korean capital of Hanseong, Munjong of Joseon becomes the new King of Korea upon the death of his father, Sejong the Great.
- April 15 - The Battle of Formigny takes place as French troops under the Comte de Clermont defeat an English army under Sir Thomas Kyriel and Sir Matthew Gough, which was attempting to relieve Caen
- May 8 - Jack Cade's Rebellion: Kentishmen revolt against King Henry VI of England.
- May 9 - Abdal-Latif Mirza, a Timurid dynasty monarch, is assassinated.
- May 13 - Charles VIII of Sweden, also serving as Carl I of Norway, is declared deposed from the latter throne, in favor of Christian I of Denmark.
- June 5 - French troops under Guy de Richemont besiege Caen in English-occupied Normandy in France, attacking the fortress commanded by Edmund Beaufort, 1st Duke of Somerset.
- June 8 - The 17th English Parliament of King Henry VI closes. Royal assent is given to several acts, including a seven-year prohibition of importation of products from the Dutch provinces of Holland, Zealand and Brabant "until English cloth may be sold there."
- June 18 - Battle of Solefields : Jack Cade's rebels are driven from London by loyal troops.
- June 20 - The First Margrave War between Nuremberg and Brandenburg ends with the signing of a peace treaty at Bamberg. Under the treaty, Albrecht III Achilles, Elector of Brandenburg, is forced to return all lands that he had captured from Nuremberg.
July–September
- July 6 - Caen surrenders to the French.
- July 7 - The surviving rebels who had participated in Jack Cade's rebellion in England are pardoned by King Henry VI. Cade himself, who had adoped the alias "John Mortimer", is pardoned under that name until his identity is discovered. Cade himself is killed by Alexander Iden on July 12, after resisting arrest for treason. His corpse is given a mock trial at Newgate Prison and the body beheaded, then dragged through the streets of London and quartered, with the limbs being sent throughout the county of Kent, where the rebellion had started.
- August 2 - The coronation of Christian I of Denmark as King of Norway takes place at Trondheim.
- August 12 - Cherbourg, the last English territory in Normandy, surrenders to the French.
- August 29 - The Treaty of Bergen is signed by officials of Norway and Sweden to reunite the two kingdoms under the rule of King Christian I. Both Norway and Sweden retain self-government and their own governing bodies.
- September 5 - Three months after the close of the last session, King Henry VI summons the members of the English Parliament to assemble at Westminster on November 6.
- September 8 - Pietro di Campofregoso is elected as the new Doge of the Republic of Genoa following the abdication of his cousin, Lodovico di Campofregoso.
- September 19 - China's Emperor Yingzong returns to Beijing after having been held as a prisoner of war by the Mongols since September 1, 1449. Upon returning, he is held under house arrest in the Forbidden City along with his wife, the Empress Qian, on orders of his younger brother Emperor Daizong.
October–December
- October 5 - Jews are expelled from Lower Bavaria, by order of Duke Ludwig IX.
- November 3 - The University of Barcelona is founded by the grant of King Alfonso V of Aragon.
- November 6 - The 18th parliament of King Henry VI of England opens. Commons elects William Oldhall as its speaker.
- November 23 - First Siege of Krujë: Albanian troops are victorious, forcing an Ottoman army of approximately 100,000 men to retreat from Albania.
- December 23 - In Rome, the collapse of the Ponte Sant'Angelo, a bridge over the Via Giulia and the subsequent stampede combine to kill more than 300 people, most of whom were on a pilgrimage to the Holy See.
Date unknown
- Machu Picchu, a pre-Columbian Inca site located 2,400 meters above sea level, is believed to be under construction.
- A religious sacrifice of over a hundred children is performed around this time, outside of the ancient city of Chan Chan, on the north coast of Peru.
- Johannes Gutenberg has set up his movable type printing press, as a commercial operation in Mainz, by this date.