Buy Sarah's books on Amazon: https://www.amazon.com/stores/author/B00EB0E8OE?ingress=0&visitId=2b9803f4-bd94-49b9-b938-c645ddf881b0&store_ref=ap_rdr&ref_=ap_rdr&ccs_id=8e6463f7-3b15-4806-a55c-e96511217507 In this video, historians Sarah and Gabriel Chrisman discuss the cyclical nature of events, the tendency of history to repeat itself, and the axiom that if you know the past, you can predict the future.