About the gaps """Mendeleev was a friend and colleague of the Sanskritist Böhtlingk, who was preparing the second edition of his book on Pāṇini[47] at about th

About the gaps """Mendeleev was a friend and colleague of the Sanskritist Böhtlingk, who was preparing the second edition of his book on Pāṇini[47] at about this time, and Mendeleev wished to honor Pāṇini with his nomenclature.[48] Noting that there are striking similarities between the periodic table and the introductory Śiva Sūtras in Pāṇini's grammar""" More: https://en.wikipedia.org/wiki/Dmitri_Mendeleev https://en.wikipedia.org/wiki/Dmitri_Mendeleev