On Oct. 16, 1846, the practice of medicine was forever changed when Boston dentist William T.G. Morton demonstrated the first use of ether as an anesthetic during surgery, allowing MGH co-founder John Collins Warren, MD, to remove a tumor from patient Gilbert Abbott's jaw. Each year, the MGH acknowledges this milestone with a celebration honoring employees for their service to the hospital. This year's Oct. 17 event celebrated 2,693 MGHers who have worked at the hospital for 5, 10, 15, 20, 25, 30, 35, 40, 45, 50, 55 and 60 years. The popular Ether Day dancers also made an appearance, performing numbers set to songs that were hits the years the honorees began work at the hospital. Sharing in the congratulations were Peter L. Slavin, MD, president of the MGH; David F. Torchiana, MD, chairman and chief executive officer of the Massachusetts General Physicians Organization; and Jeff Davis, senior vice president for Human Resources.