Assyria was a powerful Mesopotamian empire that grew out of the city-state of Ashur during the 20th to 15th centuries BCE, becoming one of the greatest empires in Mesopotamia during that time period under rulers like Hammurabi who helped expand its control and influence.

1.  Assyria was a Mesopotamian empire that grew
out of the city-state of Ashur
 Hammurabi control
 one of the greatest empires in Mesopotamia
 20th to 15th centuries BCE
http://www.ancient.eu.com/assyria/