The court-martial of Benedict Arnold convenes in Philadelphia, Pennsylvania. After a relatively clean record in the early days of the American Revolution, Arnold was charged with 13 counts of misbehavior, including misusing government wagons and illegally buying and selling goods. Although his notorious betrayal was still many months away, Arnold’s resentment over this order and the perceived mistreatment by the American Army would fuel his traitorous decision.

Norma Jeane Mortenson—who will become better known around the world as the glamorous actress and sex symbol Marilyn Monroe—is born on June 1, 1926, in Los Angeles, California. She was later given her mother’s name, and baptized Norma Jeane Baker.

On June 1, 1967, the Beatles release their eighth album, Sgt. Pepper’s Lonely Hearts Club Band, a concept album that marked a new creative peak for the Liverpudlian superstars and that would become a critical favorite in the history of rock 'n' roll.

On June 1, 1968, Helen Keller dies in Easton, Connecticut, at the age of 87. Blind and deaf from infancy, Keller became a world-renowned writer and lecturer.

On June 1, 1980, CNN (Cable News Network), the world’s first 24-hour television news network, makes its debut. The network signed on from its headquarters in Atlanta, Georgia, with a lead story about the attempted assassination of civil rights leader Vernon Jordan.

On June 1, 2004, opening statements begin in the trial of Scott Peterson, accused of murdering his wife Laci and the couple’s unborn son. On Christmas Eve 2002, the pregnant Laci had disappeared from Modesto, California. The case captivated millions across America and saturated national media coverage for nearly two years.