American Primeval takes place within the years of the Utah War, and here is everything you need to know about the real-life war behind the Netflix Western miniseries, explained. Although there have been all kinds of movies and TV shows about the various wars that the United States has been involved in throughout its history, the Utah War is one of the lesser-known ones. However, American Primeval has decided to shine some light on the series of domestic conflicts, with it using the war between Mormons and the U.S. government as the backdrop for its Western story.

https://screenrant.com/american-primeval-show-utah-war-true-story-explained/