The <a class="mw-redirect" href="https://en.wikipedia.org/wiki/Organisation_Armée_Secrète" id="mwAQQ" rel="mw:WikiLink" title="Organisation Armée Secrète">Organisation Armée Secrète</a> (OAS) sets fire to the <a class="mw-redirect" href="https://en.wikipedia.org/wiki/University_of_Algiers" id="mwAQU" rel="mw:WikiLink" title="University of Algiers">University of Algiers</a> library building, destroying about 500,000 books.