In 1969, Max Yasgur’s dairy farm in Bethel, New York, United States, was the site of the Woodstock Music and Art Fair, commonly known as Woodstock. Woodstock Rock Festival attracted over 400,000 people, billed as “an Aquarian Exposition: 3 Days of Peace & Music.” 32 acts played outdoors despite sporadic rain. It was one of the biggest music festivals of all time. Here’s how Woodstock changed a whole generation.

