The language of the Sumerians is a language isolate. The major city states of the early Sumerian period were; Eridu, Bad-tibira, Larsa, Sippar, Shuruppak, Uruk, Kish, Ur, Nippur, Lagash, Girsu, Umma, Hamazi, Adab, Mari, Isin, Kutha, Der and Akshak..