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
Here's another one: the word "hippie' came from "hipster", which is what the beatnick movement around New York City called themselves.  The more things change, the more history repeats itself. LOL