Here's how it all started as told by our founder Dr. D.D. Palmer in September of 1895...
“Harvey Lillard, a janitor, in the Ryan Block, where I had my office, had been so deaf for 17 years that he could not hear the racket of a wagon on the street or the ticking of a watch. I made inquiry as to the cause of his deafness and was informed that when he was exerting himself in a cramped, stooping position, he felt something give way in his back and immediately became deaf.
An examination showed a vertebra racked from its normal position. I reasoned that if that vertebra was replaced, the man's hearing should be restored. With this object in view, a half hour's talk persuaded Mr. Lillard to allow me to replace it. I racked it into position by using the spinous process as a lever and soon the man could hear as before.
There was nothing 'accidental' about this, as it was accomplished with an object in view, and the result expected was obtained. There was nothing 'crude' about this adjustment; it was specific, so much so that no Chiropractor has equaled it.”
And that's how Chiropractic was born – good thing D.D. Was a great persuader!
Reference: The Weekly Sticky “Did You Hear”