0 the things that have happened to someone before you first see or read about that person in a film or story --
You can also look at a back story.
A loose pre-show video was added to create a back story for the new ride.
This back story helps justify why a rapidly reproducing, disease-resistant race does not rule more of the world; they are too busy fighting each other.
Arrangement of village fair on this place is hardly a fifty years back story.
Although he likes the novel, he dismisses it because it lacks a fake author with an inspirational back story.
When it comes to that whole side, there's a back story that involves my group dealing with a case three years ago.
Much of the back story is explained via dialogue between characters, who recount unreliable, often mutually contradictory, versions of their supposed histories.
Finally, the reviewer felt that the amount of back story included in this episode was too much, and should have been spread across several episodes.
