Thomas was instrumental in developing and conducting the first successful blue baby operation in 1944. Despite such cases, racial diversity did not become commonplace at Johns Hopkins institutions until the 1960s and 1970s.
==== Women ====
Hopkins's most well-known battle for women's rights was the one led by daughters of trustees of the university; Mary E. Garrett, M. Carey Thomas, Mamie Gwinn, Elizabeth King, and Julia Rogers. They donated and raised the funds needed to open the medical school, and required Hopkins's officials to agree to their stipulation that women would be admitted. The nursing school opened in 1889 and accepted women and men as students. Other graduate schools were later opened to women by president Ira Remsen in 1907. Christine Ladd-Franklin was the first woman to earn a PhD at Hopkins, in mathematics in 1882. The trustees denied her the degree for decades and refused to change the policy about admitting women. In 1893, Florence Bascomb became the university's first female PhD. The decision …
