Note: Kalinga was conquered by the Nanda Dynasty but subsequently broke free until it was re-conquered by Ashoka, c. 260 BCE. (Raychaudhuri, H. C.; Mukherjee, B. N. 1996. Political History of Ancient India: From the Accession of Parikshit to the Extinction of the Gupta Dynasty. Oxford University Press, pp. 204-209, pp. 270-271)