One hundred years ago — on January 15, 1921 — Mary McMillan and her colleagues gathered at Keens Chophouse (now Keens Steakhouse) in New York City for the first meeting of what eventually would become the American Physical Therapy Association. Today, as we stand poised to begin our next century, APTA has evolved into one of the country's largest, most highly respected health care organizations. McMillan surely would be impressed with what her organization — her dream for the profession — has become.