Hypnosis can be traced back to early civilisations including the ancient Egyptians, Romans, and Greeks. One of the first men associated with hypnosis was Anton Mesmer, where the phrases Mesmerism or Mesmerised originated.
Later in the 1800's a doctor named James Braid came up with a new explanation for mesmerism, he believed mesmerism to be a nervous sleep, and so coined the name hypnosis after the Greek word hypnos, meaning sleep.
As years went by hypnosis started to receive serious study and gained acceptance among the medical professions. Therapeutic hypnosis declined in the first part of the last century but started to gain recognition once again in the 1950's, through the work of American psychiatrist Dr Milton Erickson.