What was created to handle the financial needs and provide stability for the economy of the newly formed United States?

The First Bank of the US

Explanation:

It is true that "The First Bank of the United States" was created to handle the financial needs and provide stability for the economy of the newly formed United States.

This First Bank of the United States was established in 1791 and was set up to give credit or loan to the government and private individuals or businesses for internal developments and another economic advancement.

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).