Abdullah ibn al-Mu'tazz
... that the Arabic poet Abdullah ibn al-Mu'tazz ruled as caliph of the Abbasid dynasty for only a single day before he was strangled to death?
... that the <a href="./Arabic_poetry" id="mwBHo" rel="mw:WikiLink" title="Arabic poetry">Arabic poet</a> <b id="mwBHs"><a class="mw-redirect" href="./Abdullah_ibn_al-Mu'tazz" id="mwBHw" rel="mw:WikiLink" title="Abdullah ibn al-Mu'tazz">Abdullah ibn al-Mu'tazz</a></b> ruled as <a class="mw-redirect" href="./Caliph" id="mwBH0" rel="mw:WikiLink" title="Caliph">caliph</a> of the <a class="mw-redirect" href="./Abbasid" id="mwBH4" rel="mw:WikiLink" title="Abbasid">Abbasid dynasty</a> for only a single day before he was <a href="./Strangling" id="mwBH8" rel="mw:WikiLink" title="Strangling">strangled</a> to death?