Science on the 20th of January in history

Science

Date	Type	Text
20 Jan 1741 Carl Linnaeus the Younger	science	birth Carl Linnaeus the Younger Carl Linnaeus the Younger, Swedish naturalist (died 1783)
20 Jan 1758 Marie-Anne Pierrette Paulze	science	birth Marie-Anne Pierrette Paulze Marie-Anne Pierrette Paulze, French chemist (died 1836)
20 Jan 1820 Alexandre-Emile Béguyer de Chancourtois	science	birth Alexandre-Emile Béguyer de Chancourtois Alexandre-Emile Béguyer de Chancourtois (died 1886), mineralogist.
20 Jan 1857 Vladimir Bekhterev	science	birth Vladimir Bekhterev Vladimir Bekhterev (died 1927), Russian psychologist.
20 Jan 1907 Dmitri Ivanovich Mendeleev	science	death Dmitri Ivanovich Mendeleev Dmitri Ivanovich Mendeleev (born 1834), chemist.
20 Jan 1910 Friederike Victoria Gessner, later Joy Adamson	science	birth Friederike Victoria Gessner, later Joy Adamson Friederike Victoria Gessner, later Joy Adamson (died 1980), wildlife conservationist.
20 Jan 1920 John Maynard Smith	science	birth John Maynard Smith John Maynard Smith (died 2004), British theoretical evolutionary biologist and geneticist.
20 Jan 1930 Buzz Aldrin	science	birth Buzz Aldrin Buzz Aldrin, astronaut, lunar module pilot on Apollo 11.
20 Jan 1939 Chandra Wickramasinghe	science	birth Chandra Wickramasinghe Chandra Wickramasinghe, Ceylonese-born British astronomer.
20 Jan 1944 James McKeen Cattell	science	death James McKeen Cattell James McKeen Cattell (born 1860), American psychologist.

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