Henry's government practiced a strict economy and he never exploited the growing wealth of the nation. He abhorred bloodshed and the sacrifice of men's lives. So he strove diligently to keep the peace, when possible by gifts of money, but otherwise with armed force. Robbers were hanged and any man who raped a woman was castrated. Foreign merchants with precious goods could journey safely through the land from fair to fair. These fairs were usually held in the early fall, after harvesting and sheep shearing. Foreign merchants bought wool cloth and hides. Frankpledge was revived, now applying to the unfree and villeins. No stranger could stay overnight (except for one night in a borough), unless sureties were given for his good behavior. A list of such strangers was to be given to itinerant justices. Henry had character and the foresight to build up a centralized system of government that would survive him. He learned about the counties' and villages' varying laws and customs. Then, using the model of Roman law, he gave to English institutions that unity and system which in their casual patchwork development had been lacking. Henry's government and courts forged permanent direct links between the king and his subjects which cut through the feudal structure of lords and vassals. He developed the methods and structure of government so that there was a great increase in the scope of administrative activity without a concurrent increase of personal power of the officials who discharged it. The government was self-regulating, with methods of accounting and control which meant that no official, however exalted, could entirely escape the surveillance of his colleagues and the King. At the same time, administrative and judicial procedures were perfected so that much which had previously required the King's personal attention was reduced to routine.