The language of Mitanni has been revealed to us by the cuneiform correspondence from Tel el-Amarna.
The Hittites had grown at the expense of Mitanni, but their glory too was of no long duration.
In Asia, Mitanni was the first neighbour of Egypt that had maintained its independence.
Their seat must have been in the region where we later find the Hittites, or Mitanni.
Thereafter he captured several cities, and extended his empire beyond the Kashiari hills and into the heart of Mitanni.