Fahrenheit 451 got its name after a fire station burned a book and told the author about it!

Some of you might know that “Fahrenheit 451” is a science fiction novel, a disturbing story of a future civilization in which firemen burn books! Sadly no one was allowed to enjoy reading a nice book. Books were meant to be burned, along with the houses they were found in.

Ray Bradbury originally titled Fahrenheit 451 as 'The Fireman', but he and the editors found the name so boring that they decided to call the physics and chemistry departments at several universities, but no one could pinpoint this temperature.

Then, wondering why he hadn’t thought of it first, he called the local fire station, and asked what temperature book paper burnt at. The firemen put Bradbury on hold, burnt a book, and reported that the temp it burnt at was Fahrenheit 451.

(Source)