Brown Box (a working prototype of the Magnavox Odyssey). 1968 – The first public demonstration of the computer mouse, the paper paradigm Graphical user interface, video conferencing, teleconferencing, email, and hypertext. 1969 – ARPANET, the research-oriented prototype of the Internet, was introduced. 1969 – CCD invented at AT&T Bell Labs, used as the electronic imager in still and video cameras. Additional notable worldwide events The Manson murders occurred between 8–10 August 1969, when actress Sharon Tate, coffee heiress Abigail Folger, and several others were brutally murdered in the Tate residence by Charles Manson's "family." Rosemary LaBianca & Leno LaBianca were also murdered by the Manson family the following night. Canada celebrated its 100th anniversary of Confederation in 1967 by hosting Expo 67, the World's Fair, in Montreal, Quebec. During the anniversary celebrations, French president Charles De Gaulle visited Canada, and caused a considerable uproar by declaring his support for Québécois independence. Popular culture The most prominent events and trends in popular culture of the decade (particularly in the Anglosphere) include: The counterculture movement dominated the second half of the 1960s, its most famous moments being the Summer of Love in San Francisco in 1967, and the Woodstock Festival in upstate New York in 1969. Psychedelic drugs, especially LSD, were widely used medicinally, spiritually and recreationally throughout the late 1960s, and were popularized by Timothy Leary with his slogan "Turn on, tune in, drop out". Ken Kesey and the Merry Pranksters also played a part in the role of "turning heads on". Psychedelic influenced the music, artwork and films of the decade, and a number of prominent musicians died of drug overdoses (see 27 Club). There was a growing interest in Eastern religions and philosophy, and many attempts were made to found communes, which varied from supporting free love to religious puritanism. Music The rock 'n' roll movement of the 1950s quickly came to an end in 1959 with the Day the Music Died (as explained in the song "American Pie"), the scandal of Jerry Lee Lewis' marriage to his 13-year-old cousin, and the induction of Elvis Presley into the United States Army. As the 1960s began, the major rock 'n' roll stars of the '50s such as Chuck Berry and Little Richard had dropped off the charts and popular music in the U.S. came to be dominated by girl groups, surf music, novelty pop songs, clean-cut teen idols, and Motown