Hey so I'm in history, and a question is, Why were the Cherokee, Creek, Seminole, Chickasaw, and Choctaw tribes designated as the “Five Civilized Tribes”? What does this indicate about American society’s definition of “civilized” at the time?

I already have the Five Civilized Tribes its just the second part, please help me, I appreciate it :)

Ahistorian is writing a book about british prime minister winston churchill. she claims that churchill was one of the earliest british leaders to realize that nazi germany was a serious threat to british security what is the best way to determine whether the historian's interpretation is valid? o a. review primary sources to see if churchill ever recorded his opinions of nazi germany. o b. find out whether the historian has written any other books about british leaders. c. analyze secondary sources summarizing the effects of nazi germany on great britain. o d. cite the historian's book in another study about important 20th- century world leaders.

What from the columbian exchange had perhaps the biggest impact on the world?

1.     in what kind of government does a small group have a firm control over a country?