Suggestions

• What is the Chicago School of architecture?

• What is the government system of the United States?

• What did the Continental Association mandate?

• Which fast food chains pioneered the drive-through format?

• What is the estimated native population of North America after the arrival of European immigrants?

• What were sharecropping and tenant farming?

• What is the largest pre-Columbian archaeological site in present-day United States?

• What is the primary mode of personal transportation in the United States?