Olof Celsius Olof Celsius Olof Celsius (the elder) (19 July 1670 – 24 June 1756) was a Swedish botanist, philologist and clergyman, He was a professor at Uppsala University, Sweden. Celsius was a mentor of the botanist and scientist Carl Linnaeus. Celsius wrote his most famous book on biblical plants, "Hierobotanicon", in 1745-47. Olof Celsius's nephew Anders Celsius was an astronomer who invented a temperature scale where 100 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.
Uppsala University as leader of the ecumenical movement. The university became prominent in the sciences in the 18th century with names such as the physician and botanist Carl Linnaeus (1707–1778), the father of biological and mineralogical taxonomy, and his numerous important pupils, the physicist and astronomer Anders Celsius (1701–1744), inventor of the Celsius scale the predecessor of the Celsius scale, and the chemist Torbern Bergman (1735–1784). Another scientist from this era is Emanuel Swedenborg (1688–1772), better remembered today as a religious mystic. Several of the elements were discovered by Uppsala scientists during this period or later. Jöns Jakob Berzelius, one of the