A backstory, background story, background, or legend is a set of events invented for a plot, preceding and leading up to that plot. In acting, it is the history of the character before the drama begins, and is created during the actor's preparation.^[1][2] These terms are also used in espionage.[1]

As a literary device, backstory is often employed to lend depth or believability to the main story. The usefulness of having a dramatic revelation was recognized by Aristotle, in Poetics.^{[citation needed]}

Backstories are usually revealed, partially or in full, chronologically or otherwise, as the main narrative unfolds. However, a story creator may also create portions of a backstory or even an entire backstory that is solely for their own use.^[3]

Backstory may be revealed by various means, including flashbacks, dialogue, direct narration, summary, recollection, and exposition.

Recollection is the fiction-writing mode whereby a character calls something to mind, or remembers it. A character's memory plays a role for conveying backstory, as it allows a fiction-writer to bring forth information from earlier in the story or from before the beginning of the story. Although recollection is not widely recognized as a distinct fiction-writing mode, recollection is commonly used by authors of fiction.

Orson Scott Card observed that "If it's a memory the character could have called to mind at any point, having her think about it just in time to make a key decision may seem like an implausible coincidence . . . " Furthermore, "If the memory is going to prompt a present decision, then the memory in turn must have been prompted by a recent event."^[4]

In a shared universe more than one author may shape the same backstory. The later creation of a backstory that conflicts with a previously written main story may require the adjustment device known as retroactive continuity, informally known as "retcon".^{[citation needed]}

Actors may create their own backstories for characters, going beyond the sometimes meager information in a script. Filling in details helps an actor interpret the script and create fully imagined characters.^[5]

• Characterization
• Flashback (narrative)
• Origin story
• Prequel

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