Half a century ago, in an atmosphere redolent of cow manure and marijuana smoke, 500,000 young people came together on the hillside of a farm in New York state.

Half a century ago, in an atmosphere redolent of cow manure and marijuana smoke, 500,000 young people came together on the hillside of a farm in New York state.

Half a century ago, in an atmosphere redolent of cow manure and marijuana smoke, 500,000 young people came together on the hillside of a farm in New York state.