Odisha hazy past focuses with the war of Kalinga in which the people of Kalinga come into head on consion with Ashoka, the powerful mouryan emperor from Magadha. A hundred thousand were killed, another hundred and fifty thousand are taken captives while an equal number die as an aftermath of the war. The bloody carnage leave Ashoka with such a better taste in his mouth that he turns his back on violence forever and embrace the Budhism faith of peace and compassion. Budhism spreads under his patronage and becomes the state religion.
Ashoka dies. The Mauryan empire lasts upto 185 BC.
The third Chedi king Kharavela comes to power, and conducts extensive military campaigns. The greatness of his power is felt from the eastern coast to western coast of India and from Mathura in the North to the Pandya kingdom in the south. Jainism flourishes under him.
Early in the 2nd Century AD Kalinga is occupied by the Sata bahana King Goutamiputra Satakami from the west (Nasik), and continues to remain under the Satabahanas probablu upto the rule of Yajansri Satakami, (AD 174-202).
After the death of .Yajansri Satakami (202 AD), the history of Kalinga sinks into obsecurity. Some minor dynasties like the Kusanas of North India. The foreign Indo- scythian Murundas, and thereafter the Nagas are believed to have ruled in the land until the time of SamudraGuptas south India campaign.
Samudragupta of Magadha sets out on his campaign of the south and conquers parts of Kalinga. The claims of Samudragupta regarding his South Indian conquests are subject to doubt.Brahminism starts reasserting itself.
Soon after the invasion of Samudragupta to new ruling power called Marathas raises its hand (from modern Parlakhemundi) and continues to rule over Kalinga till 498 AD. Kalinga under the Marathas enjoys a prosperous economic life because of her flourishing trade and commerce. Brahminism consolidates.
The reign of first group of the eastern Gangas begins.
A new dynasty called Sailodbhava raises its hand in the coastal region of Odisha extedning from Mahanadi in t he North to the Mahedragiri in the South.It is during the region of the Saillodhavas that Kalingas overseas trade floarishes largly with the rulers bunching their colonial adventure in the Suvarnadweepa i,e, modern myanmar.