The Gilded Age, The Bisbee Deportation, The CIA in Guatmala
Any of these 3 topics will do. Below is what is being asked:

The paper needs to have 5 sources minimum. 4 need to be library books. You may use journal aricles and internet sites but only after using the 4 library books. You may not use Wikipedia. The bibliography is in addition to the 4 to 5 pages of text. It must be done in Chicago Turabian.
It must have a thesis. Be clear about argument.