Simplify the following text for a Grade 10 native English-speaking person.
Original: It takes place in an alternate history of the American frontier in the early 19th century , to some extent based on early American folklore and superstition and the founder of the Latter Day Saint movement , Joseph Smith .
Simplified: It takes place in an alternate history of the American frontier in the early 1800s , and it is based on early American folklore and superstition .