Writing for Business - A Whatis.com Blog

Oct 26 2009   10:29PM GMT

1990′s or 1990s?



Posted by: Ivy Wigmore
apostrophes, Business writing, CIO, dates, grammar, plurals, Quiz

Which is correct?
The bandwidth demands of the average Internet user have increased dramatically since the _____.
a. 1990s
b. 1990′s


Answer: a

Explanation:
According to AP style, the only time you use an apostrophe s to pluralize is in the case of single letters: mind your P’s and Q’s!

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