Occupational therapy is a medical field focusing on rehabilitating people with conditions which inhibit their ability to perform normal life or work-oriented tasks. People may need occupational therapy after an injury or surgery, or to treat medical conditions such as arthritis, multiple sclerosis, or cognitive and sensory disorders. GradSchools.com made this infographic called “Occupational Therapy Through the Ages.” It features an illustrated chart describing the different iterations of the therapeutic technique from its inception to the present. It begins with some background about the Soldier’s Rehabilitation Act of 1918 and then describes the different types of occupational therapy and a comparison of how these techniques have evolved from the beginning of the 20th century to today.