Olof Celsius (the elder) (19 July 1670 – 24 June 1756) was a

Swedish Swedish or ' may refer to: Anything from or related to Sweden, a country in Northern Europe. Or, specifically: * Swedish language, a North Germanic language spoken primarily in Sweden and Finland ** Swedish alphabet, the official alphabet used by ...

botanist,

philologist Philology () is the study of language in oral and written historical sources; it is the intersection of textual criticism, literary criticism, history, and linguistics (with especially strong ties to etymology). Philology is also defined as th ...

and clergyman, He was a professor at

Uppsala University Uppsala University ( sv, Uppsala universitet) is a public research university in Uppsala, Sweden. Founded in 1477, it is the oldest university in Sweden and the Nordic countries still in operation. The university rose to significance during ...

, Sweden. Celsius was a mentor of the botanist and scientist

Carl Linnaeus Carl Linnaeus (; 23 May 1707 – 10 January 1778), also known after his Nobility#Ennoblement, ennoblement in 1761 as Carl von Linné#Blunt, Blunt (2004), p. 171. (), was a Swedish botanist, zoologist, taxonomist, and physician who formalise ...

. Celsius wrote his most famous book on biblical plants, ''Hierobotanicon'', in 1745–47. Celsius was also a prominent runologist. Olof Celsius's father was the mathematician

Magnus Celsius Magnus Celsius (16 January 1621 – 5 May 1679) was a Swedish astronomer and mathematician, decipherer of the staveless runes. His grandson was Anders Celsius. He was the father of Olof Celsius Olof Celsius (the elder) (19 July 1670 – 24 June ...

and his nephew

Anders Celsius Anders Celsius (; 27 November 170125 April 1744) was a Swedish astronomer, physicist and mathematician. He was professor of astronomy at Uppsala University from 1730 to 1744, but traveled from 1732 to 1735 visiting notable observatories in Germ ...

(son of his brother and astronomy professor Nils Celsius) was an astronomer who invented a temperature scale where 100 originally represented the freezing point of water and 0 represented the boiling point. Jean-Pierre Christin, in 1744 reversed the scale to create the centigrade scale, renamed in 1948 to the Celsius scale in use today. Noted Swedish dramatic poet and actor Johan Celsius was also his brother.https://www.myheritage.com/names/johan_celsius Olof Celsius was made a member of the Royal Swedish Academy of Sciences in 1739.

References

18th-century Swedish botanists Swedish philologists Members of the Royal Swedish Academy of Sciences 1670 births 1756 deaths {{Sweden-botanist-stub