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Is it correct to use an apostrophe when using numeric plural numbers?

Eg. "In the late 1980s and early 1990s"
or "In the late 1980's and early 1990's"
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I don't think so, otherwise it would be either:

"In the late 1980 is" or "In the late 1980's" (singular '1980' being possesive)
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Sorry but I don't understand your response.

I'll clarify my original question. When referring to the years from 1980 to 1989 do you refer to that decade as "the 1980s" or "the 1980's"?

I believe it to be the former but often see it written as the latter.
Hey Alt, welcome to the forums!

Sorry, I wasn't very clear: It should be the 1980s
Thanks Hitchhiker.
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