From Wikipedia, the free encyclopedia
|Centuries:||16th century – 17th century – 18th century|
|Decades:||1610s 1620s 1630s – 1640s – 1650s 1660s 1670s|
|Years:||1637 1638 1639 – 1640 – 1641 1642 1643|
|1640 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||2393|
|English Regnal year||15 Cha. 1 – 16 Cha. 1|
— to —庚辰年十一月十九日
|- Vikram Samvat||1696–1697|
|- Shaka Samvat||1562–1563|
|- Kali Yuga||4741–4742|
|- Ǹrí Ìgbò||640–641|
|Japanese calendar||Kan'ei 17
|Juche calendar||N/A (before 1912)|
|Julian calendar||Gregorian minus 10 days|
|Minguo calendar||272 before ROC
|Thai solar calendar||2183|
|Wikimedia Commons has media related to: 1640|
- February 9 – Ibrahim I (1640–1648) succeeds Murat IV (1623–1640) as Sultan of the Ottoman Empire.
- April 13 – King Charles I of England summons the Short Parliament in an attempt to fund the second of the Bishops' Wars.
- May 5 – The Short Parliament is dispersed.
- May 22 – The Guerra dels Segadors breaks out in Catalonia.
- August 9 – Forty-one Spanish delegates to Japan at Nagasaki are beheaded.
- October 26 – The Treaty of Ripon is signed, restoring peace between Scotland and Charles I of Scotland, England and Ireland.
- November 3 – The English Long Parliament is summoned.
- December 1
- End of the Iberian Union: João IV of Portugal is acclaimed as king, thus ending 60 years of personal union of the crowns of Portugal and Spain, and the rule of the House of Habsburg (also called the Philippine Dynasty). The Spanish Habsburgs do not recognize Portugal's new dynasty, the House of Braganza, until 1668.
- Frederick William, Elector of Brandenburg starts to rule.
Date unknown 
- The first university in Finland, the Academy of Åbo, is founded in Turku.
- The first book (the Bay Psalm Book) to be printed in North America is published.
- The first known European coffee house opens in Venice.
- January 25 – William Cavendish, 1st Duke of Devonshire, English soldier and statesman (d. 1707)
- March 18 – Philippe de la Hire, French mathematician and astronomer (d. 1719)
- March 30 – John Trenchard, English statesman (d. 1695)
- April 1 – Georg Mohr, Danish mathematician (d. 1697)
- May 31 – Michael of Poland (d. 1673)
- June 9 – Leopold I, Holy Roman Emperor (d. 1705)
- July 10 – Aphra Behn, English author (d. 1689)
- September 21 – Philippe I, Duke of Orleans, younger brother of King Louis XIV of France (d. 1701)
- September 29 – Antoine Coysevox, French sculptor (d. 1720)
- November 28 – Willem de Vlamingh, Flemish sea captain
- December 6 – Claude Fleury, French historian (d. 1723)
- December 13 – Robert Plot, British naturalist (d. 1696)
- January 14 – Thomas Coventry, 1st Baron Coventry, English lawyer and judge (b. 1578)
- January 25 – Robert Burton, English scholar (b. 1577)
- February 9 – Murad IV, Ottoman Sultan (b. 1612)
- March 17 – Philip Massinger, English dramatist (b. 1583)
- April – Uriel da Costa, Portuguese philosopher (suicide) (b. 1585)
- April 10 – Agostino Agazzari, Italian composer (b. 1578)
- May 30 – Peter Paul Rubens, Flemish painter (b. 1577)
- June 3 - Theophilus Howard, 2nd Earl of Suffolk, English politician (b. 1584)
- September 30 – Charles, Duke of Guise (b. 1571)
- October 20 – John Ball, English Puritan clergyman (b. 1585)
- December 30 – John Francis Regis, French saint (b. 1597)
- date unknown – Pedro Teixeira, Portuguese explorer
- date unknown – Bombogor, Evenk Chief
- probable – John Ford, dramatist (b. 1586)