Assyria, also called the Assyrian Empire, was a Mesopotamian kingdom and empire of the Ancient Near East that existed as a state from perhaps as early as the 25th century BCE until its collapse between 612 BCE and 609 BCE; thereby spanning the periods of the Early to Middle Bronze Age through to the late Iron Age. This vast span of time is divided into the Early Period, Old Assyrian Empire, Middle Assyrian Empire and Neo-Assyrian Empire.
