What Empire did not conqueror/control the Nile River?

Ateam of scientists studied the sediment at the bottom of an ancient lake. they were able to determine the weather conditions of the indus valley in ancient times. they found that the entire area had suffered a drought after the monsoons declined. this drought lasted 200 years. because of the drought, there wasn’t enough food or water. the people of the indus valley were forced to leave their cities.

Some historians argue that the changes brought by industrialization caused americans to beomce a more secular people. to what extent do you agree or disagree, and why? use evidence from chapter 18 to make your case.

What does the term “escalation” refer to?