The cater would serve soup then the entrée
If you are talking about books, then there are two important American classics that were written in 1947, so I guess you can choose either one of them:
1. A Streetcar Named Desire, written by Tennessee Williams
2. The Pearl, written by John Steinbeck
If you are not talking about books, then you should tell us what you mean by classics.
Answer:
I think it is proofreading but I am not too sure about it so if you get it wrong then I am sorry!