The popular version of the rapture came about around the mid-to-late 1800’s; see John Nelson Darby.
It didn’t get widespread coverage till “Late Great Planet Earth” book came out.
Major denominations such as Catholic, Presbyterian, Lutheran didn’t teach it.
True - it is a piece of fiction that we see the Jehovah's Witnesses and Seventh Day Adventists went hysterical about and now are spreading to others