National Susan Day appears on holiday-listing sites and in social posts each 27 February, a date that does not match Susan B. Anthony's birthday of 15 February. No documented founder or formal establishment record has been identified.
Rare, then everywhere
Through the Middle Ages, Susan stayed uncommon, used here and there in honor of the Old Testament heroine. That changed after the Protestant Reformation, when the name spread widely and settled into its short English spelling, Susan.


