Here is my sentence,
Back before the popularity of e-books, paperbacks, and Guttenberg’s press, my many-times-great grandma knew how to tell a story
about which I have a punctuation question.
I have been reviewing The Elements of Style but only find special punctuation for independent clauses.
I thinkI have two dependent clauses
summarizing as ...
A-Back before (this stuff)
B- grandma knew how to tell a story
I separate the two clauses with a comma.
Would you do otherwise?
Thank you
LRS
Your punctuation is correct except for the missing full stop. The comma after "paperbacks" is optional. Some people would omit it.
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Your punctuation is correct except for the missing full stop. The comma after "paperbacks" is optional. Some people would omit it. However, you do not have two clauses. There is only one clause. "Back before ... press" is an adverb phrase. It describes when "knew how to tell a story" happened.
Spelling: Gutenberg.