The actual profession of chiropractic – as a distinct form of health care – dates back to 1895. However, treatment of the spine was still crude and misunderstood until Daniel David (D.D.) Palmer discovered the specific spinal adjustment. D.D. defined Chiropractic as, “The Philosophy, Art and Science of things natural. A system for adjusting the segments of the spinal column, by hand only, for the correction of the cause of Dis-ease.” He was also responsible for the earliest development of the philosophy of Chiropractic and provided the first definition for vertebral subluxation.