The Cambridge History of India, Vol. I: Ancient India v1.c24.52

v1.c24.52

The Magadhas, who inhabited the Patna and Gayā Districts of S. Bihār, are unknown by this name to the Rigveda; but, together with their neighbours, the Aṅgas, in the Districts of Monghyr and Bhāgalpur, they are mentioned in the Atharvaveda as a people living on the extreme confines of Āryan civilisation. Their kings claimed to be Pūrus: they traced their descent from Kuru through the great conqueror, Vasu Chaidya², whose son, Bṛihadratha, was the founder of the dynasty which is known by his name.