Imagine that you are living in the 1950s, and your sister comes to you in panic right before they are about to get married, saying "I don't think I know how to be a good wife."
Because you are a voracious magazine reader, you are able to provide advice.
Here are articles you may have been encountered:
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Provide the advice in the form of a letter to your sibling. Of course, you likely wouldn't cite sources in a personal letter, but use endnotes in this case.
You only need to write about either a husband or wife, not both.
Add a one page appendix commenting on your advice from today's perspective. What advice might still be valid? What advice is outdated?
Tips:
Use numerous sources.
Remember to stay in the era, no matter how awkward this could be.