This is Sheila Michaels—in 1961 & more recently.

A feminist & civil rights activist, Michaels is credited with “discovering” & popularizing the title of Ms.

As the story goes, Michaels saw the typo “Ms.” on a piece of her roommate’s mail & decided it was the perfect alternative to having to choose between “Miss” & “Mrs.,” giving women the right to not be defined by marriage.

Sadly, Ms. Michaels passed away on June 22nd, at the ages  of 78.