Beat generation became invisible generation merry old England 1966.
Bob Dylan played Manchester Free Trade Hall looking like poet John Cooper Clarke 1979. Donovan have-you-ever-tried-to-be-like-Bob Dylan-1965 closed '66 with Sunshine Superman.
Beatles produced Revolver. Paul McCartney helped start English underground paper International Times (it or IT). This recently completed internet archive is remarkable catalogue counterculture activity UK 1966-1986, documenting hippie & punk eras up to 1980s absolute beginners beat surrender, plus one-off anarchist anti-Tory shout 1994.