Remembering Woodstock, 40 years later
Estimates of the turnout at Woodstock range from 450,000 to over 500,000 concertgoers.

John Dominis/Time & Life Pictures / Getty Images
- Special Section Looking back on the 1969 festival
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- Book Reviews 'The Road to Woodstock' and 'Back to the Garden'
(SOURCES: "Barefoot in Babylon: The Creation of the Woodstock Music Festival, 1969," "The Ultimate Encyclopedia of Rock," and "Woodstock: Three Days that Rocked the World.")

