The Viet Kong and North Vietnamese attack more than 100 cities, towns and military bases (the Tet Offensive) in South Vietnam, including Saigon, Hue and Khe Sanh. Also that year:

_ The Producers, a film written, directed by and starring Mel Brooks, wins an Oscar for Best Original Screenplay.

_ Norman Shumway, surgeon, performs AmericaÅfs first successful heart transplant.