It lasted for so long because the Assyrians were absolutely ruthless in subjecting and controlling the peoples living in their Empire. That Empire fell apart when after the death of King Ashurbanipal in 627 BC, three rivals for the throne went at each other's throats in a series of civil wars. This gave many subject peoples the opportunity to detach themselves from the Empire. The Persian and Babylonian Empires then formed a coalition to make themselves masters of what remained of the Assyrian Empire.
Assyria started to decline in the the second half of the 7th century BCE. Ashurbanipal (r. 669-631 BCE) is considered the last great king of the Neo-Assyrian Empire. After his death there were a number of power struggles, and the empire came to a screeching halt in 612 BCE. In that year, the Babylonians razed the capital Nineveh to the ground.
a long time
the mughal empire lasted 333 years
After a series of great ups and downs in its long history, the Assyrian Empire came to a final end in the year 605 B.C.E. Falling prey to attacks by a vigorous alliance of Babylonians and Medes, Assyria continued to exist as a province of its conquerors but would never again enjoy independence.
99 years
268 - 273
they tooted
1299 to 1918
The Songhai Empire lasted from around 1340 to 1591.
The Songhai Empire lasted from around 1340 to 1591.
Forever!
approximately 162 years