In this part of BackStory's “Civil War 150th” series, the History Guys present a special listener Q & A. The episode picks up on some of the themes of the previous “Civil War 150th” episodes, and puts a number of new questions on the table. What role did religion play in the lead-up to war? Why did Abraham Lincoln free the slaves in the Confederate states before he freed the slaves in the loyal states? What is the relevance of the Civil War today?