Ether was discovered in 1535 but was not used as an anesthetic until 1846 when William Morton used it during surgery at Massachusetts General Hospital. Prior to this, surgeries were performed while patients were awake and felt extreme pain. Morton's first public demonstration shocked the medical community as the patient did not scream during surgery. However, Morton faced criticism and resentment from other doctors for claiming to discover ether's anesthetic properties first. He struggled financially and was not properly recognized for his discovery before dying in bankruptcy.