Hans Peter Wilhelm Arp, also Jean Arp (b. 1886 in Strasbourg; † 1966 in Basel) was a French-German painter, graphic artist, sculptor, and lyricist. Arp moved in the artistic circles of the Constructivists and the Paris Surrealists, co-founding Dadaism in Zurich in 1916 as a literary and artistic movement in response to World War I and against its social conventions. He worked particularly closely with his wife Sophie Taeuber-Arp and at times with other artists, such as the Constructivist El Lissitzky, Max Ernst, and Kurt Schwitters. In 1930 he became a member of the group Cercle et Carré and a year later co-founder of the new abstract Parisian artists' group Abstraction-Création. Arp's oeuvre is characterized by the Dadaist principle of chance and, from the 1920s, by an "object language" of the everyday. Particularly characteristic is his preoccupation with "biomorphic," natural, rounded forms that make his work unmistakable to this day.