HELP PLS According to the timeline, how many different empires ruled Mesopotamia between about 2300 and 539 B. C.E.? Identify at least one reason why this region was desirable to conquerors.

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?

Which statement best describes a contribution of the works of nicolas copernicus and galileo galilei?

What was a major failing of the united states under the articles of confederation?