It's been a long time coming, but I'm happy to report on an important linguistic discovery: the earliest known proposal for Ms. as a title for a woman regardless of her marital status. The suggestion for filling "a void in the English language" appeared in the Springfield (Mass.) Republican on November 10, 1901, and was reprinted and discussed by other newspapers around the country. I had been on the trail of this item for a few years, and plumbing digitized newspaper databases finally revealed the original use.
You can read all about it in my latest Word Routes column on the Visual Thesaurus.