I think it was land ownership. As many Americans made the push to the West,
it angered the Native Americans living there because they were not encroaching
on their land but were taking it away from them. This of course led to conflict that killed
many Native Americans
1921 belongs to time where the juridical base was formed as a result to demands of the growing economic environment
The climax usually portray a major element of a plot, providing the peak or highest point of tension. This also happens in movies like Captain America: Civil War, or Titanic, etc.
He imposed harmful wage-price controls