// todo need optimize like in event.jsp. Add indexing or not indexing this page. Velentin Ross discoverse a more precise method for detecting small amounts of arsenic. (5 janv. 1806 – 3 nov 1812) (La bande de temps)
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Velentin Ross discoverse a more precise method for detecting small amounts of arsenic. (5 janv. 1806 – 3 nov 1812)

Ajouté au bande de temps:

16 oct. 2017

Date:

5 janv. 1806
3 nov 1812
~ 6 years and 10 months