If you teach United States History, than you might find useful this reading on the beginnings of the Civil War as well as the reading comprehension worksheet that accompanies it. It serves any number of purposes which will be contingent, ideally, on the student to whom it is assigned.
If you find typos in these documents, I would appreciate a notification. And, as always, if you find this material useful in your practice, I would be grateful to hear what you think of it. I seek your peer review