*Births*

1877- Ugo Cerletti, Italian neurologist

1887 - Sir Barnes Neville Wallis, British scientist, engineer and inventor

*Deaths*

1802 - Jurij Vega, Slovenian mathematician and physicist

1877 - Hermann Grassmann, German mathematician and physicist

1951 - Hans Cloos, German geologist

1976 - Lavoslav RuÅ¾iÄka, Croatian chemist and Nobel Prize laureate

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