17 апр 1834 г. - Mendeleev
Описание:
Date: 1834 - 1907Country: Russia
Contribution: Created a system to organize the elements known to man at the time based on the atomic mass of the element. This paved the way to the creation of the periodic table.
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Дата:
17 апр 1834 г.
Сейчас
~ 191 г назад