How many centuries did the Mannaean state exist?

This ancient state arose around the 10th century BC and existed until the 7th century BC. The Mannaean state existed on the territory of Western Asia, where Iran is now located. Its capital was the ancient city of Izirtu. In the 7th century BC, the Manneans were involved in major wars between the Assyrians, Medes, and Babylonians. As a result, after the decline of Assyria, the kingdom of Mannea itself was captured by the Medes.