The physical and social background against which a story takes place is its
theme
plot
setting
language

The physical and social background against which a story takes place is the setting. The plot is the story developed, the theme is the central topic, and language is related to the style used in a certain text.

the packers and the chiefs played in the first super bowl, which was held in los angeles in 1967. -is the sentence that would stand out the most when scanning a paragraph.