Lev Semyonovich Vygotsky (Russian: Лев Семёнович Выго́тский; Belarusian: Леў Сямёнавіч Выго́цкі; November 17 [O.S. November 5] 1896 – June 11, 1934) was a Soviet psychologist, known for his work on psychological development in children. He published on a diverse range of subjects, and from multiple views as his perspective changed over the years. Among his students was Alexander Luria and Kharkiv school of psychology.