Do plural dates take an apostrophe? - Writing for Business
» VIEW ALL POSTS Sep 25 2009   12:59PM GMT

Do plural dates take an apostrophe?



Posted by: Ivy Wigmore
CIO, plural dates, pluralization, decades, grammar, Business writing, Quiz

Which is correct?
The concept of kaizen became better known in the late ______, after the publication of Masaaki’s book, Kaizen: The Key to Japan’s Competitive Success.
a. 1980’s
b. 1980s

Answer: b

Explanation:
According to the AP Stylebook, the only case in which an apostrophe is used to create a plural form is that of individual letters.

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