M What was the main effect of the Persian wars?
Persia was no longer a threat to anyone.
Athens and Sparta began working toghther.
O Athens became the leader of the Greek city-states.
O Sparta became the leader of the Greek city-states.

In this unit, you read about transitions of power and the formation of newly independent nations in africa, asia, the americas, and the middle east. some of these transitions were peaceful, while others caused long-term instability. why do you think some countries were more successful than others with political transitions? what do you think were the biggest challenges facing newly independent countries? would it have been possible for leaders to prevent these problems before they happened? why or why not?

Once the plague became airborne, how could it then be spread?

How did the constitution of 1917 try to resolve some of the problems that started the mexican revolution