🛠️ Invention or technique

Ether surgical anaesthesia

Anestesia quirúrgica con éter

Date
1846 · confidence high
Place
Boston (Massachusetts General Hospital), United States
Credited to
William T. G. Morton (public demonstration); Crawford Long (earlier use, 1842); Horace Wells (nitrous oxide, 1844)
People
👤 Crawford Williamson Long1815–1878👤 Horace Wells1815–1848👤 William Morton1819–1868
Field
Life & health

⚠️ Disputed: the sources disagree.

What it is

Public demonstration on 16 October 1846 ('Ether Day') of a painless operation under ether inhalation. It abolished surgical pain and transformed surgery from a race against the clock into a deliberate procedure.

Crawford Long used ether in Jefferson, Georgia, in 1842 but did not publish until 1849; Charles Jackson claimed to have instructed Morton; the 'ether controversy' lasted decades.

What it led to

  • Abdominal, thoracic and prolonged surgery
  • The profession of anaesthetist
  • Hospitals as surgical centres
  • Debate over patenting a humanitarian good
  • prolonged and complex surgery
  • anaesthesiology as a specialty
  • chloroform in obstetrics (Simpson, 1847)
  • cardiac surgery and neurosurgery
🕸️ View in the graph

Built on

  • diethyl ether (known since the 16th century)
  • Davy's observations on nitrous oxide (1800)
  • Wells's failed demonstration (1845)
  • nitrous oxide (Davy)
  • synthesis of ether

Made possible

Links

Sources✓ verified 2026-09-25