// 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 déc. 1829 – 22 févr. 1858) (La bande de temps)
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Jean Baptiste Dumas, Leopold Gmelin, Ernst Lenssen, Max von Pettenkofer, and J.P. Cooke discovered 10 new elements. (30 déc. 1829 – 22 févr. 1858)

Ajouté au bande de temps:

Periodic Table Timeline

ByJessica Maeda
16 déc. 2017

Date:

30 déc. 1829
22 févr. 1858
~ 28 years
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