Qasr'e Shirin's 6,000-Year-Old Mystery Feb 26, 2006 Discovery of some clay relics from Obeid Site (an ancient site in Mesopotamia and current Iraq belonging to the 4th Millennium BC) in the city of Qasr'e Shirin has laid the origin and destination of this city’s migrants about 6,000 years ago under ambiguity. Archeologists want to know whether these migrants came to this region from Mesopotamia or they were traveling among different regions of Zagros Mountains. "Continuation of the surveys and identifications in this city led to the discovery of 75 ancient sites most of which belong to the Obeid Site," said...