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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

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First Era Timeline

ByKara Wood
8 Nov 2017
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Date:

jan 21, 1890
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~ 136 years ago

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