Assertion: hypnosis | /r/ObjectUse | used as anesthesia
Facets:
Source sentences:
text: In the beginning of the 19th century, hypnosis was being used as anesthesia until chloroform started being used in 1831.
text: Over the centuries, hypnosis came and went in various forms and was even used as anesthesia until chloroform began being used in 1831.