This day in history

In 1838, Samuel Morse and Alfred Vail gave the first successful public demonstration of their telegraph in Morristown, N.J.

In 1968, a surgical team at Stanford University School of Medicine in Palo Alto, Calif., led by Dr. Norman Shumway performed the first U.S. adult heart transplant, placing the heart of a 43-year-old man in a 54-year-old patient (the recipient died 15 days later). In 1974, year-round daylight saving time began in the United States on a trial basis as a fuel-saving measure in response to the OPEC oil embargo.