Founded in 1965 in Palo Alto, California, The Grateful Dead's music was at the epicenter of the American hippie movement for over 30 years. The Grateful Dead Archive Online, primarily constructed from the University of California Santa Cruz's Grateful Dead Archive, comprises over 45,000 digitized items, from audience-recorded bootlegs to fanzines to photographs, posters, tickets, and T-shirts. There are a number of ways to search the website. For instance, selecting Shows provides a map of venues. Click the map, and then the venue for a list of images, recordings, and other items. The Milestones tab presents an interactive timeline with arrows that move the years forward and backward over important events in the history of the band. The Artists tab links to thousands of photographs and posters, organized by artist. Perhaps best of all for Deadheads, the Media tab opens to selected audio and video recordings.