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jan 21, 1890 - Marie Curie discovered the field of atomic physics, "radioactivity". This is extra important because she is a women in the STEM field. https://www.biography.com/people/marie-curie-9263538

Added to timeline:

8 Nov 2017
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147
First Era Timeline
EDUC 5306 - STEM Timeline
Due November 7

Date:

jan 21, 1890
Now
~ 129 years ago

Images:

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