File:Warszawa, ul. Freta 16 20170516 002.jpg|thumb|upright=1.2|Marie Curie's birthplace at 16 Freta Street in Warsaw's New Town Maria Salomea Skłodowska-Curie (; ; 7 November 1867 – 4 July 1934), known simply as Marie Curie ( ; ), was a Polish and naturalised-French<!--Note: Per 1 November 2013 talk-page Request for Comment consensus, please do not change the nationality description without consulting the discussion page. This formulation ("Polish and naturalized-French") has been found to be the best way to reflect Curie's connections to both of these countries.--> physicist and chemist who conducted pioneering research on radioactivity. Wikipedia