A provincial center with Old Akkadian, Old Assyrian, and Middle Assyrian/Hurrian levels ('Ubaid to Sassanian times), near Kirkuk (ancient Arrapha) in northern Mesopotamia (Iraq). A palace and private houses of the 15th-14th centuries BC were excavated and finds include some 20,000 Old Akkadian clay tablets of the 23rd century BC. There is material from a mid-2nd millennium occupation associated with the kingdom of Arrapkha and with the Mitanni. Texts recovered provide the richest available documentation of the Mitanni empire. During the 2nd half of 2nd millennium BC, Nuzi was known as Gasur. Its distinctive type of pottery (Nuzi ware) dates to the time of association with the Mitanni and is found at other sites such as Tell Atchana from the mid-2nd millennium BC.