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19 фев 1869 г. - Dmitri Mendeleev creates an accurate periodic table.
Добавлено на ленту времени:
1st Nine Weeks Honor Project Chemistry
By
Ayanna
18 окт 2018
0
0
443
Дата:
19 фев 1869 г.
Сейчас
~ 156 г назад
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