The 19th-century American West of American Primeval is a land of unyielding brutality, though nothing about this six-part Netflix series, premiering Jan. 9, is as violent as Peter Berg’s belligerently over-the-top direction.

The series, now streaming on Netflix, depicts the brutality with which the Mormons sought to create a new world for their beliefs, the pride with which the native people held onto their ancestral lands, and the tragedy of the people just seeking to make a new home in the chaos. But is any of it true?