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AIzaSyCYaC8UkdPkQKLFUmpasLV5eC3M802CrcA
44350
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2

mar 22, 1897 - 1897 J.J. Thomson Discovered electrons

Added to timeline:

11 months ago
0
0
117
chemistry

Date:

mar 22, 1897
Now
~ 121 years ago
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