// todo need optimize like in event.jsp. Add indexing or not indexing this page. Jean Baptiste Dumas, Leopold Gmelin, Ernst Lenssen, Max von Pettenkofer, and J.P. Cooke discovered 10 new elements. (30 dic 1829 anni – 22 feb 1858 anni) (Il nastro del tempo)
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Jean Baptiste Dumas, Leopold Gmelin, Ernst Lenssen, Max von Pettenkofer, and J.P. Cooke discovered 10 new elements. (30 dic 1829 anni – 22 feb 1858 anni)

Aggiunto al nastro di tempo:

Periodic Table Timeline

ByJessica Maeda
16 dic 2017

Data:

30 dic 1829 anni
22 feb 1858 anni
~ 28 years
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