I recently finished listening to the audiobook It Wasn’t About Slavery: Exposing the Great Lie of the Civil War by Samuel W. Mitcham. Goodreads:https://www.goodreads.com/book/show/43909471-it-wasn-t-about-slavery?ac=1&from_search=true&qid=jaHAx7Vlmq&rank=1
The book didn't just talk about tariffs in the antebellum Union. It also explains how the African Slave Trade started and how Yankees profited heavily from it for many years.
