The last bedraggled fan sloshed out of Max Yasgur's muddy pasture more than 25 years ago. That's when the debate began about Woodstock's historical significance. True believers still call Woodstock the capstone of an era devoted to human advancement. Cynics say it was a fitting, ridiculous end to an era of naivete. Then there are those who say it was just a hell of a party. The Woodstock Music and Art Fair in 1969 drew more than 450,000 people to a pasture in Sullivan County. For four days, th...