Complex sentence: The administration of general anaesthesia in operative procedures was publicly demonstrated by William Norton (1819-1868) in Boston, October 1846 as the first successful practice of it's kind, revealing the pain-annulling properties of ether inhalation during surgery.
Split into simpler sentences: The administration of general anesthesia in operative procedures was publicly demonstrated by William Norton (1819-1868) in Boston, October 1846 as the first successful practice of it's kind. This practice revealed the pain-annulling properties of ether inhalation during surgery.