A remarkable chapter in the history of diabetes care: pioneering work in the early 20th century helped transform pregnancy from a major challenge for women with diabetes into a setting where healthy maternal and foetal outcomes could increasingly be achieved. Through nearly five decades of dedicated clinical care and research, this pioneering approach emphasized close monitoring, improved glycemic control, and individualized management throughout pregnancy. The legacy of this work continues through modern diabetes-in-pregnancy programs, while the White Classification of Diabetic Pregnancies remains an important historical contribution to assessing pregnancy risk according to diabetes onset, duration, and complications