Less than a year after the unsuccessful launch of Nupedia—an online free encyclopedia—its successor, Wikipedia, goes live on January 15, 2001.

Historic Human Rights and Security Agreement Signed in Vienna In a landmark event in 1989, representatives from NATO, the Warsaw Pact, and twelve other European nations gathered in Vienna, Austria, to adopt a pivotal human rights and security agreement.

On January 15, 1981, Hill Street Blues, television’s landmark cops-and-robbers drama, debuts on NBC.

On January 15, 1981, NBC unveiled a groundbreaking police drama that would redefine the genre: "Hill Street Blues.

On January 15, 1974, television history was made with the premiere of the beloved sitcom "Happy Days" on ABC.

On January 15, 1972, “American Pie,”, an epic poem in musical form that has long been etched in the American popular consciousness, hits #1 on the Billboard charts.

On January 15, 1967, the Green Bay Packers of the National Football League (NFL) smash the American Football League (AFL)’s Kansas City Chiefs, 35-10, in the first-ever AFL-NFL World Championship, later known as Super Bowl I, at Memorial Coliseum in Los Angeles.

On January 15, 1967, a historic clash reshaped the landscape of professional football as the Green Bay Packers faced off against the Kansas City Chiefs in what would later be known as Super Bowl I.

Ilse Koch, wife of the commandant of the Buchenwald concentration camp, is sentenced to life imprisonment in a court in West Germany.

This was the day when the BBC broadcast live sports commentary for the first time and introduced a novel way of involving listeners in the action.