Rome created an efficient economic system that enabled even middle-strata Judeans to buy goods from far-distant places. Rome introduced new social structures, the patron-client system, and the household headed by the pater familias. The Jews created their own system of governance under the Roman rulers. They also created the synagogue. Jewish religion transformed itself. God became more numinous, while Satan turned into a person. Jews came up with a definite concept of a life after death.