Yellowstone prequel series, 1923, is not based on a true story but contains several historical accuracies that shed light on the events of the time period, including how prohibition, The Great Depression, and the aftermath of the First World War impacted Montana. The show also accurately depicts the horrifying treatment of Native Americans in government-funded boarding schools run by the Catholic Church, showcasing real-life experiences of countless people. Despite being fictional, the show strives to set its stories against the backdrop of very real history, even if said history is disturbing or gut-wrenching.