Marcel Duchamp was a painter, sculptor, chess player, and writer. Duchamp is considered as an important #Dadaisim figure in New York, and one of the artists who most influenced on the art of the 20th century. He made "Fountain", which was a porcelain urinal, reoriented to a position 90 degrees from its normal position of use, and written by "R. Mutt 1917", and submitted for the exhibition of the Society of Independent Artists. "Fountain" is considered as a an important milestone for the 20th century art. "L.H.O.O.Q." is one of the Duchamp famous works, which painting the Mona Lisa with a mustache and goatee.