In or from?

Anonymous I found this sentence online. Should "from" be replaced with "in"?
The report highlights many of the Alliance's major achievements from the past five years.

Yes.

CJ

Thanks, CJ. What is the reason? I had a feeling it should be in, but I don't know why.

AnonymousWhat is the reason?

It's not complicated. The meaning of "in" is the reason. in {a time period} ~ occurring within that period

CJ

That makes sense. Last question - "Please add all the sales in January and February and let me know the total". I guess I'd use in instead of from in that case too?

AnonymousThat makes sense. Last question - "Please add all the sales in January and February and let me know the total". I guess I'd use in instead of from in that case too?

Yes. "in" is correct.

CJ

Thank you, CJ. I said that was my
last question, so maybe somebody else would like to answer this. I have been thinking about the use of from and in a lot. Say, for example, I was looking at a spreadsheet of data, would it be correct to say "Delete the figures from May and June?" From my understanding of what CJ had said, it would probably be incorrect. Also, would be incorrect to say "Bad mem

This is from the Oxford learner's dictionary:

Meaning: used to show what the origin of somebody/something is.

examples:

I am from Italy.
documents from the sixteenth century

The sales and achievements in my examples were made in the mentioned t