Medieval Cities information.

- New technical innovations nad farming tools.
- Guilds: groups of people of the same work, grouped themselves together in a business 
                associations.
- Charlemagne divided the kingdom among his sons, one surviving son: Louis the Pious 
  died , next, the other three sons, Charles, Louis and Lothair.
- They signed the Treaty of Verdum (843),to confirm the division of the empire.  Next,     
   Lothair died so divide the empire into two.