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Births
1801 – Mikhail Vasilievich Ostrogradsky, Ukrainian scientist
1802 – Adolphe d’Archaic, French paleontologist and geologist
1870 – Georges Claude, French chemist and inventor
1895 – André Frédéric Cournand, French physiologist and Nobel Prize laureate
Deaths
1541 – Paracelsus, Swiss alchemist
1742 – Johann Matthias Hase, German scientist
1904 – Niels Ryberg Finsen, Danish physician and Nobel Prize laureate
1945 – Hans Geiger, German physicist
1993 – Bruno Pontecorvo, Italian physicist