Kazimir Severinovich Malevich (1879 - 1935) (
Kazimir Malevich) was a Russian avant-garde artist and art theorist, whose pioneering work and writing influenced the development of abstract art in the 20th century. He was born in Kiev, modern-day Ukraine, to an ethnic Polish family. His concept of Suprematism sought to develop a form of expression that moved as far as possible from the world of natural forms (objectivity) and subject matter in order to access "the supremacy of pure feeling" and spirituality. He is a central figure in the history of modern art in Central and Eastern Europe more broadly.
His Black Square (1915), a black square on white, represented the most radically abstract painting yet exhibited, and drew "an uncrossable line (...) between old art and new art"; Suprematist Composition: White on White (1918), a barely differentiated off-white square superimposed on an off-white ground, would take his ideal of pure abstraction to its logical conclusion.
Malevich's student Anna Leporskaya observed that Malevich "neither knew nor understood what the black square contained. He thought it so important an event in his creation that for a whole week he was unable to eat, drink or sleep."