The <a href="https://en.wikipedia.org/wiki/Woodstock" id="mwAco" rel="mw:WikiLink" title="Woodstock">Woodstock Music &amp; Art Fair</a> opens in <a href="https://en.wikipedia.org/wiki/Bethel,_New_York" id="mwAcs" rel="mw:WikiLink" title="Bethel, New York">Bethel, New York</a>, featuring some of the top rock musicians of the era.