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The year 1640 in science and technology included many events, some of which are listed here.

See also: 1639 in science, other events of 1640, 1641 in science and the list of years in science.

1 Births

April 1 - Georg Mohr, Danish mathematician (died 1697)

2 Deaths

1640 Years in science

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Topics: 1640 In Science, 1640s, 1640s BC, 1640s In Canada...

1640sCenturies: 16th century 17th century 18th century Decades: 1590s 1600s 1610s 1620s 1630s 1640s 1650s 1660s 1670s 1680s 1690s Years: 1640 1641 1642 1643 1644 1645 1646 1647 1648 1649 Events and Trends The personal union of the crowns of Spain and Portugal	1640Events December 1 Portugal regains its independence from Spain and John IV of Portugal becomes king. Spain does not recognize the indepedence before 1668 Charles I summons and rapidly dismisses the Short Parliament in an attempt to fund the second of the	1640s BCCenturies: 18th century BC 17th century BC 15th century BC Decades: 1690s BC 1680s BC 1670s BC 1660s BC 1650s BC 1640s BC 1630s BC 1620s BC 1610s BC 1600s BC 1590s BC Events and trends Santorini, Aegean Sea erupts. Significant people 1640s BC.
1640 in scienceThe year 1640 in science and technology included many events, some of which are listed here. See also 1639 in science, other events of 1640, 1641 in science and the list of years in science. Births April 1 Georg Mohr, Danish mathematician (died 1697) Deat	1640s in CanadaSee also 1630s in Canada, other events of the 1640s, 1650s in Canada and the list of 'years in Canada'. Events c. 1640: Beavers and otters nearly exterminated in Iroquois country. To expand territory, Iroquois launch decades-long "Beaver Wars" against Hur	1640s in architectureSee also 1630s in architecture, other events of the 1640s, 1650s in architecture and the architecture timeline. Buildings Births April 16, 1646 Jules Hardouin Mansart (died 1708) Deaths 1640s Years in architecture.