TIL the first Star Wars movie (A New Hope) was actually made after a book adaptation, which means Star Wars hype is technically literary-based in nature
Star Wars: A New Hope, formerly titled Star Wars: From the Adventures of Luke Skywalker, is a Legends novel ghostwritten by Alan Dean Foster and credited to George Lucas. It adapts the film of the same name, and it was based on the screenplay by Lucas. The novelization was first published on Novembe...
The book actually features a backstory pretty close to the Prequels with Senator Palpatine using the "massive organs of commerce" to gain power and become president of the Republic.
The biggest difference is that by the time of the book, he's pretty much a puppet to people like Tarkin.
I could be mistaken because I haven't read the book in a couple years now, but I believe the Darth Plagueis novel from 2012 gave us Palpatine's first name.