The Human Be-In takes place in San Francisco’s Golden Gate Park with between 20,000 to 30,000 people in attendance, their purpose being to promote their ideals of personal empowerment, cultural and political decentralization, communal living, ecological preservation, and higher consciousness. The event is considered the beginning of the famed counterculture Summer of Love.

Johnny Cash performs live at Folsom State Prison in Folson, California, where he records a live album that includes a version of his 1955 hit “Folsom Prison Blues.” Cash had always been interested in performing at a prison, but was unable to until personnel changes at his record company brought in people who were amenable to the idea. The Folsom album was Cash’s biggest commercial success for years, reaching number 1 on the country music charts.

British serial killer Harold Shipman is found dead in his prison cell, after hanging himself with a bedsheet. Shipman, a former doctor who preyed on his patients, was one of the most prolific serial killers in history, with two-hundred and eighteen murders positively attributed to him, and another two-hundred of which he is suspected.

English novelist Nevil Shute, who wrote the books A Town Like Alice and The Pied Piper, dies in Melbourne, Australia at age sixty-one. Seven of his novels were adapted to film, but his most famous was the cautionary post-nuclear war classic On the Beach.

Dr. James Bedford, a University of California psychology professor, becomes the first person to be cryonically preserved with intent of future resuscitation. Bedford had kidney cancer that had metastasized to his lungs and was untreatable. His body was maintained for years by his family before being moved to Alcor Life Extension Foundation in Arizona.

Jack Gilbert Graham is executed in Colorado, U.S.A., for killing 44 people by planting a dynamite bomb in a suitcase that was subsequently loaded aboard United Airlines Flight 629. The flight took off from Denver and exploded in mid-air. Graham was executed by means of poison gas in the Colorado State Penitentiary, in Cañon City.