Any art in which the depiction of real objects in nature has been subordinated or entirely discarded, and whose aesthetic content is expressed in a formal pattern or structure of shapes, lines and colours. Sometimes, the subject is real but so stylized, blurred, repeated or broken down into basic forms as to be unrecognizable. Sculpture that is partly broken down in this way is called semiabstract. When the representation of real objects is completely absent, as opposed to realistic or figurative sculpture, such art may also be called nonrepresentational or nonobjective, a term first used by Wassily Kandinsky (1866-1944). An abstract element or intention appears in works of art and decoration throughout the history of art, from Neolithic stone carvings onward. But abstraction as an aesthetic principle began in the early 20th century with Braque (1882-1963).