Revolutionary Avengers
... that the anarchist Revolutionary Avengers group from 1910 to 1914 has been described as the most radical terrorist organization in the history of Poland?
... that the <a class="mw-redirect" href="./Anarchist" id="mwDbg" rel="mw:WikiLink" title="Anarchist">anarchist</a> <i id="mwDbk"><b id="mwDbo"><a href="./Rewolucyjni_Mściciele" id="mwDbs" rel="mw:WikiLink" title="Rewolucyjni Mściciele">Revolutionary Avengers</a></b></i> group from 1910 to 1914 has been described as the most radical terrorist organization in the <a href="./History_of_Poland" id="mwDbw" rel="mw:WikiLink" title="History of Poland">history of Poland</a>?