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Este mapa conceptual tiene información relacionada a: medieval cities 1, Climatic conditions to grow crops, from XIIc to XVc more or better SECURITY, SECURITY to work, MORE FOOD POPULATION grows, POPULATION grows ???? looking for FREEDOM (not feudal system), from XIIc to XVc more or better Climatic conditions, from XIIc to XVc more or better technological developments, to grow crops MORE FOOD, to work MORE FOOD, inside a WALL ???? but GHETTOs