The Woodstock three day outdoor music festival celebrates its final night. The audience was estimated at more than 450,000 and it was the largest and most memorable of dozens of outdoor music festivals that took place between 1967 and 1969.
This era began with the Monterey Pops Concert, at Monterey, California, on June 16-18, 1967, and ended tragically, with the Altamont Racetrack Concert, at Altamont, California, which was marked by violence.
James M Shelley, CC BY-SA 4.0 , via Wikimedia Commons