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jan 1, 1949 - Element 97 is discovered. Columbium is renamed to Niobium. Protoactinium is renamed to Protactinium. Lutecium is renamed to Lutetium.
Added to timeline:
Timeline of the Big Science
By
Thomas Jacobs
17 Apr 2021
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567
Date:
jan 1, 1949
Now
~ 77 years ago
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