169 years ago today, Elizabeth Blackwell became the first woman in the United States to receive a doctor of medicine degree. . . . . . . . . . #science #sciencehistory #womeninscience #women #womancrush #sciencehero #shepersisted #neverthelessshepersisted #doctor #medicine #education #degree #first #firsts #otd #onthisday #todayinhistory