4
The thirteenth-century map of
Constantinople shown above
indicates that the city

a.

congress passed laws allowing for free passage between states.

the conditions that made the byzantine empire vulnerable to attacks by the muslin turks were the sack of constantinople by western crusaders, the conquests of the sultanate of rum, presence of rival kingdoms and finally the set up of fiefdoms at the empire which were owned by the ghazis (turkish warriors).

b) the confederacy had to pay all union war expenses.