// todo need optimize like in event.jsp. Add indexing or not indexing this page. 1869 г. – открытие Д.И. Менделеевым (1834–1907) Периодического закона химических элементов. (1 Jan 1869 Jahr – 1 Jan 1869 Jahr) (Band der Zeit)
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1869 г. – открытие Д.И. Менделеевым (1834–1907) Периодического закона химических элементов. (1 Jan 1869 Jahr – 1 Jan 1869 Jahr)

Zugefügt zum Band der Zeit:

Научные открытия и культурные достижения 19 века

ByАлексей Георгиевский
10 Sep 2018

Datum:

1 Jan 1869 Jahr
1 Jan 1869 Jahr
~ 0 min

Abbildungen:

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