The term that Mark Twain coined as an era characteriezed by a facade of prosperity was gilded age. "Gilded Age" was a title of a book that he co-wrote with Charles Warner. The book is about poor people trying to get rich and their relentless pursuit of wealth. Gilded gold was a term that meant that gold was placed on top of gold over and over, as in a bar of gold.
It divided the Native Americans' reservations.
It's party leadership I'm not 100 percent I hope this helpful