Claim: Julio Castellanos studied under Saturnino Herrán and Leandro Izaguirre in 1918, and had his first single exhibition in Buenos Aires in 1925.
Evidence: Castellanos matriculated the Escuela Nacional de Bellas Artes in 1918, where he studied under Saturnino Herrán and Leandro Izaguirre, together with Agustín Lazo, Rufino Tamayo and Leopoldo Méndez. In 1925 he had his first single exhibition in Buenos Aires, and moved to Paris to deal with European art.