The New Chronology of the Bronze Age Settlement of Tepe Hissar, Iran. Ayşe Gursan-Salzmann

(Hissar IC, IB and IA), precedes the Proto-Elamite period and with it the Jamdet Nasr in Mesopotamia; that is we are not far wrong in assuming that Hissar IC ends about 3500 BC, while Hissar IA may actually extend into the fifth millennium. Our conservative estimates of the date of Hissar I as tentatively expressed in the preliminary report [1933] on Tepe Hissar has totally collapsed.…We do not know whether Hissar IC at Sialk was directly followed by the Proto-Elamite occupation and, therefore, we do not know which grey ware phase of Tepe Hissar was contemporaneous with it. For the moment, we assume that it corresponds in time with Hissar IIA and IIB. (Schmidt 1937:321)

      It is too early to correlate the sub-phases of Hissar II and III with definite phases of Mesopotamian history.…We could not disregard the striking resemblances between…Early Dynastic Sumer and Hissar IIIC. We are inclined to attribute the end of Hissar III to…the first half of the second millennium BC, but an earlier age may be indicated. (ibid., p. 325)