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The land of Odisha or former Kalinga has undergone several changes in terms of its boundaries since ancient ages. It was also known by different names like Odra Desha, Kalinga, Hirakhanda, Mahakantara or Utkala in different eras. Unlike other ancient kingdoms in India, Odisha for most part of the History remained a stable and major power till medieval era due to widespread martial culture and prosperity brought by successive native ruling dynasties.
The year 1568 is considered a turning point in the history of Odisha. In 1568, Kalapahad invaded the state. This, aided by internal conflicts, led to a steady downfall of the state from which it did not recover.