with the contention that "95 percent of diseases are caused by displaced vertebrae; the remainder by luxations of other joints," and with defensive accusations that, quoting Palmer, ". . . several persons have tried to make fame and reputation for themselves by an endeavor to wrest from me the honor and distinction due me as the discoverer and developer of chiropractic," Palmer opened the first chiropractic college in Davenport, Iowa: a three-week course with no entrance requirements.
The school, called the Palmer Infirmary and Chiropractic Institute, taught simple, "straight chiropractic" -- that is, adjustment of the joints as a treatment for disease. Other chiropractic schools, however, much to the consternation of the original Palmerites, began to dilute pure chiropractic with other therapeutic measures (such as massage, colon irrigation, and heat lamps). This was the beginning of the "mixers" as opposed to the "straights" who limited themselves to manipulation of the spine with "hands only." The pattern of disagreement that began in those early days of chiropractic remains in the practice today.
When the Palmer Infirmary began to totter under the inept leadership of D.D. Palmer, B.J. Palmer entered the picture; leading the "straights," he took over his father's school, now called the Palmer School of Chiropractic. "B.J." was a shrewd business man, and by 1921 the institution in Davenport had an annual income of $1,000,000 at its peak. This was quite a feat, considering the fact t at Palmer had no formal education beyond the 9th grade...
The contention that D.D. Palmer, in establishing the chiropractic profession, restored the sense of hearing in a man who had been deaf for 17 years by adjusting a "bump" in his spine has been thoroughly disputed by accredited authorities -- at least insofar as the explanation of how it occurred is concerned. There has been no real evidence that a misplaced vertebra, causing nerve pressure, is capable of causing deafness. The fact that all the nerves of hearing are enclosed within the skull, with none of these nerves originating in the spinal cord, brings this statement from modern chiropractors:
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