During the 2nd to 1st century BCE in far northern India, in the Greco-Buddhist art of Gandhara from what is now southern Afghanistan and northern Pakistan, sculptures became more explicit, representing episodes of the Buddha's life and teachings. Although India had a long sculptural tradition and a mastery of rich iconography, the Buddha was never represented in human form before this time, but only through some of his symbols. This may be because Gandharan Buddhist sculpture in modern Afghanistan displays Greek and Persian artistic influence. Artistically, the Gandharan school of sculpture is said to have contributed wavy hair, drapery covering both shoulders, shoes and sandals, acanthus leaf decorations, etc.