You Might Not Know This About Punctuation Marks — But You Should 

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My current events-junkie hubby brought this short article to my attention (Akira Okrent, The Week online 10/14/14). 

We all know that word meanings morph over time, but I hadn’t thought about how the role of punctuation is changing, too. Poor little comma…  

http://theweek.com/article/index/269689/the-secret-emotional-lives-of-5-punctuation-marks