World Anaesthesia Day

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World Anesthesia Day
Observed byAll UN Member States
SignificanceCelebration and awareness of anaesthesia
Beginsearly 20th century
Date16 October
Next time16 October 2022 (2022-10-16)

World Anesthesia Day or World Anaesthesia Day, also known in some countries as National Anaesthesia Day or Ether Day, is an annual event celebrated around the world on 16 October to commemorate the first successful demonstration of diethyl ether anesthesia on 16 October 1846.[1]

This ranks as one of the most significant events in the history of medicine and took place in an operating theater (now known as the Ether Dome) at the Massachusetts General Hospital, home of the Harvard School of Medicine. The discovery made it possible for patients to obtain the benefits of surgical treatment without the pain associated with an operation.

Special events have been held to commemorate the date since at least 1903.[1] The World Federation of Societies of Anaesthesiologists celebrates World Anaesthesia Day annually[2] with over 134 societies representing anaesthesiologists from over 150 countries taking part.


  1. ^ a b Haridas RP (2017). "October 16: Ether Day, National Anaesthesia Day and World Anaesthesia Day". J Anesth Hist. 3 (4): 115–116. doi:10.1016/j.janh.2017.11.001. PMID 29275801.
  2. ^ "WFSA - #WorldAnaesthesiaDay is a day to support #change".