Historical clue formulations

• 1911 Polish/French Chemistry Nobelist who pioneered research in radioactivity — 2022-03-08
• Polonium was named for her homeland, Poland, in 1898 — 2020-09-05
• First two-time Nobelist — 2018-01-27
• Radioactivity pioneer — 2005-12-11
• Greer Garson role, 1943: 2 wds. — 1999-05-16
• Chemist born in Warsaw, Poland — 1997-07-30