In a time far less hairy than others (or more hairy, depending on what you year you currently find yourself situated in):
https://www.salon.com/2015/02/15/americas_hair_removal_insanity/
https://www.theatlantic.com/health/archive/2017/02/the-casualties-of-womens-war-on-body-hair/514983/
https://www.nytimes.com/2015/07/16/fashion/women-who-dye-their-armpit-hair.html
https://diply.com/article/unicorn-armpit-hair-is-a-cute-colorful-and-unexpected?publisher=diply&config=25
Also, happy birthday Ma!!