Golden hamster stock of hamsters was exported from Syria to the United States in 1971, but apparently none of today's North American pets is descended from these (at least in the female line), because recent mitochondrial DNA studies have established that all domestic golden hamsters are descended from one female – probably the one captured in 1930 in Syria. Since the species was named, the genus "Cricetus" has been subdivided and this species (together with several others) was separated into the genus "Mesocricetus", leading to the currently accepted scientific name for the golden hamster of "Mesocricetus auratus". Following Professor Aharoni's collection in
Country of origin around the fourth century BCE. In a largely pre-literate society, the shape of the amphora and its pictorial markings functioned as a brand, conveying information about the contents, region of origin and even the identity of the producer which were understood to function as signs of product quality. The Romans preferred to purchase goods from specific places, such as oysters from Londinium and cinnamon from a specific mountain in Arabia, and these place-based preferences stimulated trade throughout Europe and the Middle East. In Pompeii and nearby Herculaneum, archaeological evidence also points to evidence of branding and labelling in relatively common