
Kazimir Malevich, a Russian artist who wanted to invent a brand-new kind of art made of pure shapes and color.
A single black square painted in the middle of a white background, with nothing else in the picture at all.
Malevich showed it in 1915 and called it a fresh start for art, a picture of feeling rather than of any real thing.
He named this bold, simple style Suprematism, where art is built only from basic shapes and a few flat colors.
Over the years the black paint cracked, and experts even found faint traces of an earlier picture hidden underneath.
One version hangs at the Tretyakov Gallery in Moscow, Russia, where visitors come to see this famous square.
Malevich made several versions of the black square during his life, so more than one exists in the world today.