I’m not exactly sure of the term for it, but I have seen it described in a script as a “roll-up.” Or even not at all. The terms I can find for it are “scroll” and “crawl.”
What I think of most is that text in the beginning of a movie that sets you right up. In the beginning of Blade Runner, the roll-up tells you just what kind of world you are entering. In The Maltese Falcon, you are given a very brief history of a falcon and see how the protagonist Sam Spade becomes entangled with it.
In literature I find very often quotations are inserted before the body text begins, but I’m looking for a different sort of impact, that Blade Runner sort of impact. I could of course just write a few sentences and call it the Prolog. But how about a timeline?
For the story I’m trying to finish before a friend leaves, I’m considering putting a timeline that drops you off this Earth and onto another one entirely. Consider the following:
1969: Neil Armstrong is the first human to walk on the moon.
Ho hum, right? But how about this:
1969: Neil Armstrong is the first human to walk on the moon.
1970: Neil Armstrong is the first human to walk on Mars.
Bingo! We ain’t in Kansas anymore! (And I hope to god no one else has used this)
Those two lines came from the timeline I’m working on. I don’t want to make it too long, but there’s a lot I want to hit the reader with. Should be fun.