Mitanni

State · 1,500–1,241 BCE · at its largest around 1,500 BCE

Hurrian-speaking kingdom of northern Syria and upper Mesopotamia with its capital at Washukanni, a rival of Egypt and the Hittites until it fell to Hittite and Assyrian pressure.

On its lands while it lasted

Assur (2,500–609 BCE): Capital of Assyria (1800 BCE–901 BCE), Neo-Assyrian Empire (900 BCE–609 BCE).
Carchemish (1,901–901 BCE): Capital of Assyria (1800 BCE–901 BCE).
Nimrud (c. 1,800–612 BCE): Capital of Assyria (1800 BCE–901 BCE).
Nineveh (c. 1,800–612 BCE): Capital of Assyria (1800 BCE–901 BCE).
Dur-Sharrukin (c. 1,800–605 BCE): Capital of Assyria (1800 BCE–901 BCE).
Tell Leilan (c. 1,800–901 BCE): Capital of Assyria (1800 BCE–901 BCE).
Kar-Tukulti-Ninurta (c. 1,800–901 BCE): Capital of Assyria (1800 BCE–901 BCE).
Tell el Fakhariya (c. 1,500–1,260 BCE): Capital of Mitanni (1500 BCE–1260 BCE).
Battle of Kadesh (1,274 BCE): Ramesses II fought the Hittite army of Muwatalli II near Kadesh on the Orontes, possibly the largest chariot battle ever fought; it ended without a decisive result.