The marble Kritios Boy or Kritian Boy belongs to the Early Classical period of ancient Greek sculpture. It is the first statue from classical antiquity known to use contrapposto;[1] Kenneth Clark called it "the first beautiful nude in art"[2] The Kritios Boy is thus named because it is attributed, on slender evidence,[2] to Kritios, who worked together with Nesiotes (sculptors of Harmodius and Aristogeiton) or their school, from around 480 BC. As currently mounted, the statue is considerably smaller than life-size at 117 cm (3 ft 10 ins),[1][3] including the supports that replace the missing feet.