The concentration of production of one good in an area leads to need to import others. Threads are created. The Growth of Towns A. Decline of towns after fall of Rome Major exception - Italy, Venice B. Survival of Towns elsewhere Administrative centers Episcopal centers. Many are unmarried - servants etc. Incidence of disease.
Population comes from migration into towns.
C. Price Control Idea of fair price. The Communal Movement Town government by Bishops or lords. London had 30,000 by late 13th century. Do not describe Jewish life or contribution to medieval history. Not an issue of unfair rates, but of natural law.