To Kill a Mockingbird takes place in Maycomb county Alabama during 1933–1935
I want to say either diaries or fashion magazines. Diaries are much more story like and could be a little lathered up for lack of a better word. However I would go with fashion magazines, which talk about whatever's popular at the time, giving you a quick general outlook on the time period.
There are many grammar rules but the most essential ones are: nouns, adjectives, verbs, punctuation, and speech.