1 janv. 1871 - Mendeleev's Periodic Table Created (1871)
Description:
Russian chemist Dmitri Mendeleev's periodic table emerged as the defining document of the elements. Mendeleev left spaces open in his table for elements that were not yet discovered.Ajouté au bande de temps:
Date:
1 janv. 1871
Maintenaint
~ Il y a 154 ans