There is slight evidence for puppetry in the Indus Valley Civilization. Archaeologists have unearthed one terracotta doll with a detachable head capable of manipulation by a string dating to 2500 BC. Another figure is a terracotta monkey which could be manipulated up and down a stick, achieving minimum animation in both cases. Puppets are described in the epic "Mahabharata", Tamil literature from the Sangam era, and various literary works dating from the late centuries BC to the early centuries AD, including the Edicts of Ashoka. Works like the "Natya Shastra" and the "Kama Sutra" elaborate on puppetry in some detail.