What Were the Ancient Sumerian Job Specializations?

The primary artisan specialization was pottery. Craftsman specialization include stone cutters, metal smiths, fisherman, weavers, sailors, bricklayers, farmers, shepherds and leather-workers. They invented the wheel to make their chariots and carts more mobile and to expand their ability to make pottery. They started to smelt iron and they used seals for the purpose of stamping clay with a carved insignia.