Mignon Fogarty · 68w Wishing you an OK day on March 23 โ National OK Day! ๐ Back in 1839, the Boston Morning Post published the first known instance of "OK" (writing it "o.k."). It was an abbreviation for the joking... Puppethead @Puppethead 1742753838 @nprofile1q... I'm curious, if "o.k." was the original published version, why isn't that form recommended for use? Is it because Woodrow Wilson's campaign opted for the "OK" form? Or because it's no longer an abbreviation for something?