The day, set aside to appreciate the importance of punctuation, was created by a former newspaper editor, Jeff Rubin, in 2004 with the aim of getting people to pay attention to the comma, semicolon, question mark, and all those other dots and dashes.
This year's event caught punctual coverage from news organizations and websites, some more serious than others.
The New Yorker ran a contest to co-incide with the event, where participants were asked to create their own punctuation marks, and in a twist to an earlier contest, the new inventions had to be made from two existing marks—"Reese's Peanut Butter Cup-style."
The National Punctuation Day website is also running a contest, asking people to write one paragraph with a maximum of three sentences and using 13 specific punctuation marks, explaining which should be “presidential,” an appropriate theme ahead of the 2012 presidential election.
But perhaps more-suited to the appetites of many is finding new ways to celebrate the day, such as the Official Meat Loaf of NationalPunctuation Day, which features a dubious shape for a buffet entree.
Check out some of the media coverage as people paused, with a comma, to pay attention to punctuation: