Have you ever heard of Woodstock. It was a famous music festival in 1969. 
Oh, sure.  the Woodstock arts and Music fair was the highlight of 1969 if you don't count the moon landing.  Over 400,000  people attended.
Yeah, There were 32 performers that performed acts. It was huge at the time.
The hippies who descended on Max Yasgur's farm were drawn by what was billed as "An Aquarian Exposition: 3 Days of Peace & Music"
There was a film about it too. That won an Academy Award in 1970.  And Joni Mitchell made a song about it that was popular also
I saw and heard those. that weekend was the pivotal moment, or nexus, when everything changed from the stoic culture of the 1950's and early 1960's to the psychedelic times and culture of the 1970's.
That farm in Catskill Mountains in New York was listed on the National Register of Historic places in 2017
yes, they are doing an archaeological dig there now.  the interesting thing is that the counterculture movement that started in th UK and the USA and which is embodied by the Woodstock concert spread around the world and set the stage for the civil rights movement and the revolutionary stand against Vietnam. 
That is interesting. I liked the movie because it showed some performers who died like Janis Joplin and Jimmy Hendricks
Hippie
A hippie (sometimes spelled hippy) is a member of the counterculture of the 1960s, originally a youth movement that began in the United States during the mid-1960s and spread to other countries around the world. The word "hippie" came from "hipster" and was used to describe beatniks who moved into New York City's Greenwich Village and San Francisco's Haight-Ashbury district. The term "hippie" first found popularity in San Francisco with Herb Caen, who was a journalist for the "San Francisco Chronicle
List of performances and events at Woodstock Festival
The Woodstock Music & Art Fair was a music festival held on a 600-acre (2.4 km²; 240 ha, 0.94 mi²) dairy farm in the rural town of Bethel, New York from August 15 to August 18, 1969. Thirty-two acts performed during the sometimes rainy weekend in front of nearly half a million concertgoers. It is widely regarded as one of the greatest moments in popular music history and was listed on "Rolling Stone"s "50 Moments That Changed