When was the role of physical therapist assistant established?What are the outlooks for the profession in the future?

Your research paper must be typed and double-spaced on standard-sized paper (8.5″ x 11″), with 1″ margins on all sides. Please follow APA format including 12 pt. Times New Roman font. You must also include at least 3 citations for your work. Papers should be limited to 3 pages including title/cover page.
Your research paper must include the following: 1. When was Physical Therapy established in the United States 2. What 2 historical events led to the establishment? 3. Who was Mary McMillian and what was her role in Physical Therapy? 4. When was the role of physical therapist assistant established? 5. What are the outlooks for the profession in the future?