Except for the fact that, as the Oxford English Dictionary notes, there's a 50-year gap between the battle for Port Mahon and mayonnaise's appearance in the textual record. But nature abhors a vacuum (sous-vide aside), and plenty of theorists took advantage of mayonnaise's unclear origins to come up with their own.
Depending on the structure of the program, you may or may not need to complete your bachelor's degree before entering the program...especially if you apply to the doctorate level program. So, yes, one does need to go to grad school to become a PT. It would be worth your while to go to the apta website at www.apta.org and click under education to get a list of accredited PT programs. Then you can visit each school's website to get a better idea of their entrance requirements.
How to Become a Physical Therapist[About this section] [To Top] Get the education you need: Find schools for Physical Therapists near you! Physical therapists need a Doctor of Physical Therapy (DPT) degree. All states require physical therapists to be licensed. Licensing requirements vary by state but all include passing the National Physical Therapy Examination administered by the Federation of State Boards of Physical Therapy. Several states also require a law exam and a criminal background check.