<a href="https://en.wikipedia.org/wiki/Vietnam_War" id="mw6Q" rel="mw:WikiLink" title="Vietnam War">Vietnam War</a>: Student protesters at <a href="https://en.wikipedia.org/wiki/Columbia_University" id="mw6g" rel="mw:WikiLink" title="Columbia University">Columbia University</a> in New York City <a class="mw-redirect" href="https://en.wikipedia.org/wiki/Columbia_University_protests_of_1968" id="mw6w" rel="mw:WikiLink" title="Columbia University protests of 1968">take over administration buildings and shut down the university</a>.