Early Historical Period : Sisunagas
Sisunaga had acted as the Magadhan viceroy at Kasi before he became the king. He made Girivraja his new capital. He defeated Pradyota (one of the successors of Chanda Pradyota) and annexed Avanti to Magadha. This made him the most powerful ruler of north India. His son and successor was Kalasoka.
The two most important events of his regin were
(i) The meeting of the second Buddhist Council at Vaisali. And
(ii) The final transfer of the capital to Pataliputra. He was assassinated in the vicinity of his capital by the founder of the Nanda dynasty.