Answer:
Austria, Yugoslavia, Lithuania, Latvia, Czechoslovakia, Estonia, Poland, Hungary, and Finland
Explanation:
I think there are nine. :) But if you only need 6, here are some options!
The fall of Ancient Rome started from about AD 190. The Roman Empire was attacked by tribes such as the Goths and the Vandals. Civil wars in parts of the empire further weakened the rule of Rome and respect for Roman law dwindled as a result.
The Pilgrims' first corn crop was successful thanks to help they received from the Wampanoag Native Americans. The Wampanoag taught the Pilgrims to plant corn seeds in small mounds with herring (a type of fish) on top of the mounds to provide nutrients for the crops.