Chirand, on the northern bank of the Ganga River, in Saran district, has an archaeological record from the Neolithic age (about 2500–1345BC). Regions of Bihar—such as Magadha, Mithila and Anga—are mentioned in religious texts and epics of ancient India. Mithila is believed to be the centre of Indian power in the Later Vedic period (c. 1100-500 BCE). Mithila first gained prominence after the establishment of the Videha kingdom. The Kings of the Videha Kingdom were called Janakas. A daughter of one of the Janaks of Mithila, Sita, is mentioned as consort of Lord Rama in the Hindu epic Ramayana, written by Valmiki. The Videha Kingdom later became incorporated into the Vajji confederacy which had its capital in the city of Vaishali, which is also in Mithila.