Historic Highlights Mortgage for a Microscope Dr. W.W. and Louise Mayo were so dedicated that they mortgaged their home to buy a microscope. Read More » Historic Highlights Surgical Innovations Edith Graham, R.N., used this bottle to administer ether. It was the start of a new era … Read More » Historic Highlights Mayo Family Inkwell In 1919, the Mayo brothers and their wives signed a document that changed medical history … Read More » Historic Highlights Diversified Genius Henry Plummer, M.D., was a man of many talents … Read More » Historic Highlights Lou Gehrig Baseball When the New York Yankees legend came to Mayo Clinic in 1939, he befriended … Read More » Historic Highlights Educational Outreach For more than a century, Mayo Clinic has educated patients, medical professionals and members of the public … Read More » Historic Highlights Nobel Prize Telegram In 1950, the fastest way to send a text message was by telegram… Read More » Historic Highlights U.S. Postage Stamp In 1964, the U.S. Postal Service honored the Mayo brothers … Read More » « »