Clinical legal education has evolved substantially in the fifty years since Elliott Milstein initiated the clinical model at American University Washington College of Law (“WCL”) that, notwithstanding numerous changes in program and personnel since that time, remains essentially in effect today. In this Article, we explore the theoretical, pedagogical, structural, programmatic, and personnel developments that have occurred during this period. We link these developments to broader developments within the national and international clinical legal education spheres. WCL’s Clinical Program, and its clinical faculty, have been leaders in shaping these developments, but, in the best clinical tradition, we have not done so alone but in dialogue with other colleagues. We conclude with a discussion of the unfinished business of the clinical legal education movement.