The first operation performed under general anaesthesia had, at that time, been performed seven years earlier, on 16 October 1846, at the Massachusetts General Hospital in Boston, United States. A dentist called William Morton had anaesthetised a patient called Edward Abbott, by getting him to inhale ether, diethyl ether to be exact. Abbott had a tumour in his neck that had to be removed. While he was asleep, a surgeon called John Warren cut the tumour out. Everything went well, the patient had felt nothing and simply woke up after the operation. Warren was very impressed, uttering the
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