The Guti (), also known by the derived exonyms Gutians or Guteans, were a people of the ancient Near East. Their homeland was known as Gutium (Sumerian: ,Gu-tu-umki or ,Gu-ti-umki). Conflict between people from Gutium and the Akkadian Empire has been linked to the collapse of the empire, towards the end of the 3rd millennium BC. The Guti subsequently overran southern Mesopotamia and formed the Gutian dynasty of Sumer. The Sumerian king list suggests that the Guti ruled over Sumer for several generations following the fall of the Akkadian Empire. By the 1st millennium BC, usage of the name Gutium, by the peoples of lowland Mesopotamia, had expanded to include all of western Media, between the Zagros and the Tigris. Various tribes and places to the east and northeast were often referred to as Gutians or Gutium. For example, Assyrian royal annals use the term Gutians in relation to populations known to have been Medes or Mannaeans. As late as the reign of Cyrus the Great of Persia, the famous general Gubaru (Gobryas) was described as the "governor of Gutium". Origin Little is known of the origins, material culture or language of the Guti, as contemporary sources provide few details and no artifacts have been positively identified. As the Gutian language lacks a text corpus, apart from some proper names, its similarities to other languages are impossible to verify. The names of Gutian kings suggest that the language was not closely related to any languages of the region, including Sumerian, Akkadian, Hurrian, Hittite, and Elamite. Most scholars reject the attempt to link Gutian king names to Indo-European languages. History 25th to 23rd centuries BC The Guti appear in texts from Old Babylonian copies of inscriptions ascribed to Lugal-Anne-Mundu (fl. circa 25th century BC) of Adab as among the nations providing his empire tribute. These inscriptions locate them between Subartu in the north, and Marhashe and Elam in the south. Sargon the Great (r. circa 2340 – 2284 BC) also mentions them among his subject lands, listing them between Lullubi, Armanum and Akkad to the north; Nikku and Der to the south. According to one stele, Naram-Sin of Akkad's army of 360,000 soldiers defeated the Gutian king Gula'an, despite having 90,000 slain by the Gutians. The epic Cuthean Legend of Naram-Sin claims Gutium among the lands raided by Annubanini of Lulubum during the reign of Naram-Sin (c. 2254–2218 BC). Contemporary year-names