1626 in science
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The year 1626 in science and technology involved some significant events.
Physiology and medicine
- Posthumous publication of Adriaan van den Spiegel's De formato foetu in Venice with illustrations by Giulio Casserio and including the first observation of milk in female breasts at birth.{{cite book|authorlink=Joseph Needham|first=Joseph|last=Needham|title=A History of Embryology|edition=2nd|publisher=Cambridge University Press|year=1959|pages=99–100}}
Technology
- Cornelius Vermuyden commissioned to drain Hatfield Chase on the Isle of Axholme in Lincolnshire, England.
Births
- February 18 or 19 – Francesco Redi, Italian physician, biologist and poet (died 1697)
- March 1 – Jean-Baptiste de La Quintinie, French horticulturalist (died 1688)
- April 7 – Ole Borch ({{Lang|la|Olaus Borrichius}}), Danish chemist, physician, grammarian and poet (died 1690)
- approx. date – Pietro Mengoli, Italian mathematician (died 1686)
Deaths
- February 11 – Pietro Cataldi, Italian mathematician (born 1548)
- April 9 – Francis Bacon, English philosopher and a founder of modern scientific research (born 1561)
- April 11 – Marin Getaldić or Ghetaldi, Ragusan politician, mathematician and physicist, contributed to the emergence of new algebra (born 1568)
- April 14 – Gaspare Aselli, Italian anatomist (born c. 1581)
- June 21 – Anselmus Boëtius de Boodt, Flemish-born humanist, priest, physician and mineralogist (born c. 1550)
- October 30 – Willebrord Snellius, Dutch mathematician and physicist who devised the basic law of refraction, known as Snell's law (born 1580)
- December 10 – Edmund Gunter, English mathematician (born 1581)
=Unknown date=
- Salomon de Caus, French mechanical and hydraulic engineer (born 1576)