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Urban Hjärne, Swedish chemist, geologist, and physician (died 1724)

Historical image related to Urban Hjärne, Swedish chemist, geologist, and physician (died 1724) from December 20, 1641

Related Wikipedia articles

Urban Hjärne

Swedish chemist

Urban Hjärne was a Swedish chemist, geologist, physician and writer.
Source: Wikipedia (CC BY-SA)

December 20

Day of the year

December 20 is the 354th day of the year in the Gregorian calendar; 11 days remain until the end of the year.
Source: Wikipedia (CC BY-SA)