Ubaid 3/4, sometimes called Ubaid I and Ubaid II — In the period from 4500–4000 BC saw a period of intense and rapid urbanisation with the Ubaid culture spread into northern Mesopotamia and was adopted by the Halaf culture.
Ubaid 3/4, også kaldet Ubaid I og Ubaid II - I perioden 4.500-4.000 f.Kr. indtraf en periode med intens og hurtig urbanisering, hvor Ubaid-kultur spredes ind i det nordlige Mesopotamien og blev adopteret af Halaf-kulturen.