Many of the European cities today were important middle age towns and some, like London, predate that time. People stay in places where there are access to rivers, oceans, food, and good crop land. So, places like Dublin, Paris, London, Madrid to just name a few were important spots.
in medieval towns
Medieval towns were independent by buying a royal charter.
Medieval towns were crowded because serfs wanted more freedom and moved out of the manor land to towns.
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Some medieval towns transportations were wagons or carriages. Some people just walked.
Merchant guilds dominated the economic and political life of medieval towns.
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Abdul Rehman has written: 'Historic towns of Punjab' -- subject(s): Ancient Cities and towns, Antiquities, Cities and towns, Ancient, Cities and towns, Medieval, History, Local, Local History, Medieval Cities and towns
because they just did
Colchester, Chichester, and Malmsbury were market towns.
Plague
the kings,serf