Buddhist works such as the Mahavamsa and the Mahavasatika have attempted to link the Maurya dynasty to the clan of Shakyas to which the Buddha belonged. In Divyavadana, Chandraguptas son Bindusara was declared Kshatriya Murdabhisheka or Kshatriya. According to Buddhist writers, the region from which the Mauryas came was full of peacocks Pāli in Sanskrit and Mora in Mayur, and therefore came to be known as Moriya Pali form of Maurya. It is clear from this that the Buddhists were trying to elevate the social status of Ashoka and his predecessors. The Jain tradition given in Hemachandra's Parisasthaparvan relates Chandragupta as the son of the daughter of a village chief of peacock-tamarind mayura-poska. The use of the words Vrishala and Kula-Hina in Visakhadattas Mudraraksha for Chandragupta probably implies that Chandragupta was merely an upstart of an unknown family. Greek classical writers, such as Justin, describe Chandragupta Maurya as a man of humble origin, but do not mention his exact race. The Junagadh rock inscription of Rudradaman mentions Vaishya Pushyagupta as the provincial governor of the Maurya king Chandragupta. There is a reference to Pushyagupta being Chandragupta's brother-in-law which means that the Mauryas were of Vaishya origin. Finally, we can say that the Mauryas were of comparatively humble origin who belonged to the Moria tribe and were certainly of a lower caste. The acquisition of Magadha was the first step in the establishment of a new dynasty. Once the Ganges valley was under his control, Chandragupta moved to the north-west to exploit the power vacuum created by Alexander's departure. The areas of the north-west rapidly came to him.