In 1836, an enslaved six-year-old girl named Med was brought to Boston by a woman from New Orleans who claimed her as property. Learning of the girl's arrival in the city, the Boston Female Anti-Slavery Society (BFASS) waged a legal fight to secure her freedom and affirm the free soil of Massachusetts. While Chief Justice Lemuel Shaw ruled quite narrowly in the case that enslaved people brought to Massachusetts could not be held against their will,...