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Births
1640 – Robert Plot, English naturalist
1662 – Francesco Bianchini, Italian philosopher and scientist
1724 – Franz Aepinus, German scientist
1867 – Kristian Birkeland, Norwegian explorer and scientist
1923 – Philip Warren Anderson, American physicist and Nobel Prize laureate
Deaths
1565 – Conrad Gessner, Swiss naturalist
1783 – Pehr Wilhelm Wargentin, Swedish astronomer
1868 – Carl Friedrich Philipp von Martius, German botanist
1895 – Anyos Jedlik, Hungarian physicist
1919 – Woldemar Voigt, German physicist
1930 – Fritz Pregl, Slovenian/Austrian chemist and Nobel Prize laureate
1935 – Victor Grignard, French chemist and Nobel Prize laureate
1955 – Egas Moniz, Portuguese neurosurgeon and Nobel Prize laureate