Woodstock 1969 On this day in 1969, The Woodstock Festival, the most famous rock festival of its era, opened in upstate New York... the three-day rock music celebration, which was held on Max Yasgur's 600-acre dairy farm, in Bethel, NY, near Woodstock... featured Joan Baez, Blood, Sweat and Tears, Jimi Hendrix, The Who, Arlo Guthrie, Joe Cocker, Richie havens, The Grateful Dead, Janis Joplin, Canned Heat, Santana and many more...