The Fall of Assur occurred when the first city and old capital of the Neo-Assyrian Empire fell to Median led forces. The sack of the city that followed destroyed the city to some degree; however it recovered during the Achaemenid Empire and appears to have been a semi or fully independent Assyrian state during the Parthian Empire before being conquered by the Sassanids in the late 3rd century AD. The city remained occupied by Assyrians until the massacres of Tamurlane in the 14th century AD[5].