Early inhabitants were known as the Andhras, tracing their history to the Vedic period when they were mentioned in the 8th century BCE Rigvedic text Aitareya Brahmana. According to the Aitareya Brahmana, the Andhras left North India from the banks of river Yamuna and migrated to South India. The Assaka Mahajanapada (700–300 BCE) was an ancient kingdom located between the Godavari and Krishna rivers in southeastern India accounts that people in the region are descended from the Viswamitra are found in the "Ramayana", the "Mahabharata" and the Puranas. The region also derives its name from Satavahanas who are also known as Andhras, the earliest kings of Andhra Pradesh and India. Early peoples supported local art culture by building temples and sculptures of the Buddhist monuments in the state.