When did Mitanni exist?
Mitanni
from c. 1500 to 1300 BC
Mitanni  (/mɪˈtæni/; Hittite cuneiform
KUR URUMi-ta-an-ni; Mittani Mi-it-ta-ni), also called Hanigalbat (Hanigalbat, Khanigalbat cuneiform Ḫa-ni-gal-bat) in Assyrian or Naharin in Egyptian texts, was a Hurrian-speaking state in northern Syria and southeast Anatolia from c. 1500 to 1300 BC. Mitanni came to be a regional power after the Hittite destruction of Amorite[1] Babylon and a series of ineffectual Assyrian kings created a power vacuum in Mesopotamia.