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jan 1, 1937 - Tc
Description:
Технеций
открыли Карло Перье и Эмилио Джино Сегре
Added to timeline:
12 Nov 2018
0
0
452
Chemical timeline
открытие химических элементов
Date:
jan 1, 1937
Now
~ 87 years ago
Images:
Geo:
