The opening of the <a class="mw-redirect" href="https://en.wikipedia.org/wiki/Ninth_Street_Show" id="mwARQ" rel="mw:WikiLink" title="Ninth Street Show">Ninth Street Show</a>, otherwise known as the <a href="https://en.wikipedia.org/wiki/9th_Street_Art_Exhibition" id="mwARU" rel="mw:WikiLink" title="9th Street Art Exhibition">9th Street Art Exhibition</a>: A gathering of a number of notable artists, and the stepping-out of the post war New York <a href="https://en.wikipedia.org/wiki/Avant-garde" id="mwARY" rel="mw:WikiLink" title="Avant-garde">avant-garde</a>, collectively known as the <a href="https://en.wikipedia.org/wiki/New_York_School_(art)" id="mwARc" rel="mw:WikiLink" title="New York School (art)">New York School</a>.