Mendeleev Dmitry Ivanovich (1834-1907) – world famous Russian scientist encyclopedist, educator, educator, citizen, patriot.

Born in Tobolsk on January 27 (February 8) 1834 in the family of the director of the Tobolsk gymnasium Ivan Pavlovich Mendeleev and Maria Dmitrievna, who came from the merchant family of the Kornilievs. From 1841 to 1849 he studied at the Tobolsk men’s gymnasium. In 1850 he entered the Main Pedagogical Institute in St. Petersburg, from which he graduated in 1855.

In 1856 he defended his master’s thesis, and in 1865 – his doctoral dissertation. DI. Mendeleev is the author of the first Russian textbook on chemistry “Organic Chemistry” (1861), as well as the classic work on chemistry, based on the Periodic Law – “Fundamentals of Chemistry” (1868-1871). From 1861 to 1890 he taught at St. Petersburg University, from 1892 to 1907 he held the position of a scientific keeper of the Depot of Exemplary Weights and Measures, and from 1893 – manager of the Main Chamber of Weights and Measures.

One of the most famous discoveries brought by D.I. Mendeleev international recognition – The Periodic Law of Chemical Elements (February 17, 1869).
D.I. Mendeleev wrote more than 500 scientific papers in chemistry, physical chemistry, physics, metrology, economics, technology, geology, meteorology, pedagogy, aeronautics, instrument making. Scientific achievements of D.I. Mendeleev were recognized both in Russia and abroad – he was elected an honorary member of more than 100 domestic and foreign academies, universities and scientific societies, awarded with high international awards.

All multifaceted scientific and social activities of Mendeleev were aimed at contributing to the economic and cultural prosperity of the homeland. “My first service to my homeland,” he said, “is science, the second is education, the third is industry.”