Events
- January 26 - At English Civil War Battle of Nantwich the Parliamenterians defeated the Royalists, allowing them to end the six week Siege of Nantwich in Cheshire, England.
- February to August - Explorer Abel Tasman's second expedition for the Dutch East India Company maps the north coast of Australia.
- March 24 - In England, Roger Williams is granted an official charter for his Rhode Island Colony, allowing the establishment of a general assembly.
- April - A popular Chinese rebellion led by Li Zicheng sacks Beijing, prompting Chongzhen, the last emperor of the Ming Dynasty, to commit suicide.
- June 6 - The invading Manchu army, with the help of Ming general Wu Sangui, captures Beijing, China. This marks the beginning of the Qing Dynasty (also known as the Manchu Dynasty), the last imperial dynasty of China.
- July 2 - Battle of Marston Moor, a crushing victory for the Parliamentary side of the English Civil War, ended Charles I's hold on the north of England.
- September 1 - Battle of Tippermuir, Montrose defeats Elcho's Covenanters, reviving Royalist cause in Scotland
- September 2 - Second Battle of Lostwithiel, the last major victory for Charles I and the Royalist side in the English Civil War.
- September 15 - Pope Innocent X is elected to the Papacy, in Rome.
- November 23 - Areopagitica by John Milton is published.
- December - Plague breaks out in Edinburgh.
Unknown date
Ongoing events
Births
- January 10 - Louis François, duc de Boufflers, French marshal (d. 1711)
- January 18 - John Partridge, English astrologer (d. 1708)
- April 7 - François de Neufville, duc de Villeroi, French soldier (d. 1730)
- June 16 - Henrietta Anne Stuart, Princess of Scotland, England and Ireland (d. 1670)
- August 6 - Louise de la Vallière, French mistress of Louis XIV of France (d. 1710)
- August 12 - Heinrich Ignaz Biber, Bohemian composer and violinist (d. 1704)
- September 25 - Ole Rømer, Danish astronomer (d. 1710)
- October 1 - Alessandro Stradella, Italian composer (d. 1682)
- October 2 - François-Timoléon de Choisy, French writer (d. 1724)
- October 6 - Elisabeth of France, queen of Philip IV of Spain (b. 1602)
- October 14 - William Penn, English Quaker and founder of Pennsylvania (d. 1718)
- Antonio Stradivari, Italian violin maker (d. 1737)
- Matsuo Basho, Japanese poet (d. 1694)
See also Category:1644 births.
Deaths
See also Category:1644 deaths.
1644
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