Her birthday also happens to be on February 14th -- also known as valentine's day. In the show 30 rock, Liz Lemon renames "Valentine's day" with "Anna Howard Shaw day" to equate the holiday with woman power instead of celebrating being in a relationship.
Liz:No, I'll buy some cookies. But not for Valentine's Day. Instead, these cookies celebrate the February 14th birthday of Anna Howard Shaw, famed American suffragette. Happy Anna Howard Shaw Day to you.