Each student must start at least two new discussion threads in which he/she summarizes something learned about American history between 1848 and 1877. Your new discussion threads each should make some kind of argument about a particular issue from the assigned readings and/or video lessons, and each argument should be based on specific historical evidence from the textbook and/or video lessons. Your first post in the two discussion threads you create should be at least 250 words, written in complete sentences. Then, make a substantive reply to two other students’ discussion threads within this Discussion Forum. Write your four posts (two original threads and two replies) in complete sentences using standard English, and please be respectful and thoughtful in your replies.