a broad range of reforms on issues such as gay rights, abortion, gender roles and drugs in contrast to earlier leftist or Marxist movements that had taken a more vanguardist approach to social justice and focused mostly on labor unionization and questions of social class. In April 1969, the building of People's Park in Berkeley, California received international attention. The University of California, Berkeley had demolished all the buildings on a parcel near campus, intending to use the land to build playing fields and a parking lot. After a long delay, during which the site became a dangerous eyesore, thousands of ordinary Berkeley citizens, merchants, students, and hippies took matters into their own hands, planting trees, shrubs, flowers and grass to convert the land into a park. A major confrontation ensued on May 15, 1969, when Governor Ronald Reagan ordered the park destroyed, which led to a two-week occupation of the city of Berkeley by the California National Guard. Flower power came into its own during this occupation as hippies engaged in acts of civil disobedience to plant flowers in empty lots all over Berkeley under the slogan "Let a Thousand Parks Bloom". In August 1969, the Woodstock Music and Art Fair took place in Bethel, New York, which for many, exemplified the best of hippie counterculture. Over 500,000 people arrived to hear some of the most notable musicians and bands of the era, among them Canned Heat, Richie Havens, Joan Baez, Janis Joplin, The Grateful Dead, Creedence Clearwater Revival, Crosby, Stills, Nash & Young, Carlos Santana, Sly & The Family Stone, The Who, Jefferson Airplane, and Jimi Hendrix. Wavy Gravy's Hog Farm provided security and attended to practical needs, and the hippie ideals of love and human fellowship seemed to have gained real-world expression. Similar rock festivals occurred in other parts of the country, which played a significant role in spreading hippie ideals throughout America. In December 1969, a rock festival took place in Altamont, California, about 45 km (30 miles ) east of San Francisco. Initially billed as "Woodstock West", its official name was The Altamont Free Concert. About 300,000 people gathered to hear The Rolling Stones; Crosby, Stills, Nash and Young; Jefferson Airplane and other bands. The Hells Angels provided security that proved far less benevolent than the security provided at the Woodstock event: 18-year-old Meredith Hunter was stabbed and killed by one of the Hells Angels