From Wikipedia, the free encyclopedia
|Centuries:||16th century – 17th century – 18th century|
|Decades:||1610s 1620s 1630s – 1640s – 1650s 1660s 1670s|
|Years:||1641 1642 1643 – 1644 – 1645 1646 1647|
|1644 by topic:|
|Arts and Science|
|Architecture - Art - Literature - Music - Science|
|Lists of leaders|
|Colonial governors - State leaders|
|Birth and death categories|
|Births - Deaths|
|Establishments and disestablishments categories|
|Establishments - Disestablishments|
|Ab urbe condita||2397|
|English Regnal year||19 Cha. 1 – 20 Cha. 1|
— to —甲申年十二月初三日
|- Vikram Samvat||1700–1701|
|- Shaka Samvat||1566–1567|
|- Kali Yuga||4745–4746|
|- Ǹrí Ìgbò||644–645|
|Japanese calendar||Kan'ei 21Shōhō 1
|Juche calendar||N/A (before 1912)|
|Julian calendar||Gregorian minus 10 days|
|Minguo calendar||268 before ROC
|Thai solar calendar||2187|
|Wikimedia Commons has media related to: 1644|
- January 22 – The Royalist Oxford Parliament is first assembled by King Charles I of England.
- January 26 – First English Civil War – Battle of Nantwich: The Parliamentarians defeat the Royalists, allowing them to end the 6-week Siege of Nantwich in Cheshire, England.
- February–August – Explorer Abel Tasman's second expedition for the Dutch East India Company maps the north coast of Australia.
- January 30 – Battle of Ochmatów: Polish-Lithuanian Commonwealth forces under hetman Stanisław Koniecpolski secure a substantial victory over the horde of Crimean Tatars under Tugay Bey.
- March 24 – In England, Roger Williams is granted an official charter for his Rhode Island Colony, allowing the establishment of a general assembly.
- April 19–April 22 – Battle of Shanhai Pass: The Manchu Qing Dynasty and Wu Sangui gain a decisive victory over Li Zicheng's Shun Dynasty .
- April 25 – A popular Chinese rebellion led by Li Zicheng sacks Beijing, prompting Chongzhen, the last emperor of the Ming Dynasty, to commit suicide.
- May 26 – Battle of Montijo: The Kingdom of Portugal is victorious over Habsburg Spain in the first major action between the two nations during the Portuguese Restoration War.
- June 3 – Li Zicheng claims himself as the emperor of China.
- 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 – English Civil War – Battle of Marston Moor: The Parliamentarians crush the Royalists, ending Charles I's hold on the north of England.
- September 1 – English Civil War – Battle of Tippermuir: Montrose defeats Elcho's Covenanters, reviving the Royalist cause in Scotland.
- September 2 – English Civil War – Second Battle of Lostwithiel: Charles I and the Royalists gain their last major victory.
- September 15 – Pope Innocent X succeeds Pope Urban VIII as the 236th pope.
- November – The Castle of Elvas in Portugal resists a 9-day siege by the Spanish during the Portuguese Restoration War.
- November 23
- December 9 – As Christina comes of age, she is made ruling queen of Sweden.
- December – Plague breaks out in Edinburgh.
Date unknown 
- The opera Ormindo is first performed in Venice: music by Francesco Cavalli and libretto by Giovanni Faustini.
- Kolumna Zygmunta (Sigismund's Column) is erected in Warsaw to commemorate King Sigismund III Vasa, who moved the capital of Poland from Kraków to Warsaw in 1596.
- Philosopher René Descartes publishes Principia Philosophiae (Principles of Philosophy).
- During the English Civil War, Prince Rupert and his men take Liverpool Castle, which is later reclaimed by Sir John Moore.
- Opechancanough leads the Powhatan Indians in an unsuccessful uprising against the English at Jamestown. This is the last such Indian rebellion of the region.
- A Spanish officer is murdered in St. Dominic's Church (Macau) during mass by colonists loyal to Portugal during the Portuguese Restoration War.
- 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 Franz 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 14 – William Penn, English Quaker and founder of Pennsylvania (d. 1718)
- date unknown
- March 15 – Louise Juliana of Nassau, Regent of Bohemia (b. 1576)
- April 10 – Reverend William Brewster, Pilgrim leader (b. 1567)
- April 25 – Chongzhen, last Ming Emperor of China (suicide) (b. 1611)
- July 29 – Pope Urban VIII (b. 1568)
- September 7 – Guido Bentivoglio, Italian statesman and historian (b. 1579)
- September 8
- October 6 – Elisabeth of Bourbon, queen of Philip IV of Spain (b. 1602)
- November 6 – Thomas Roe, English diplomat (b. c. 1581)
- November 10 – Luís Vélez de Guevara, Spanish writer (b. 1579)
- December 28 – John Bankes, Attorney General and Chief Justice to King Charles I of England (b. 1589)
- December 30 – Jan Baptist van Helmont, Flemish chemist (b. 1577)