Mendeleev Dmitry Ivanovich-Famous russian scientist,who discover periodic law of chemical elements.He was born in 1834 in Tobolsk.He was ingenious student and he developed in many sciences including physics and chemistry.He gave the world a lot of new knowledge and gave a basis for the development of science in the future.Most of his discovers was associated with chemistry and thats why he became famous.He also became the first director of the Main Chamber of Weights and Measures.
He died in 1907 in Saints Petersburg,but people still remember his discovers and inventions.