World War II: <a href="https://en.wikipedia.org/wiki/Sachsenhausen_concentration_camp" id="mwiQ" rel="mw:WikiLink" title="Sachsenhausen concentration camp">Sachsenhausen concentration camp</a> is liberated by soldiers of the <a href="https://en.wikipedia.org/wiki/Red_Army" id="mwig" rel="mw:WikiLink" title="Red Army">Red Army</a> and <a class="mw-redirect" href="https://en.wikipedia.org/wiki/Polish_First_Army" id="mwiw" rel="mw:WikiLink" title="Polish First Army">Polish First Army</a>.<sup about="#mwt46" class="mw-ref reference" data-mw='{"name":"ref","attrs":{},"body":{"id":"mw-reference-text-cite_note-7"}}' id="cite_ref-7" rel="dc:references" typeof="mw:Extension/ref"><a href="./April_22#cite_note-7" id="mwjA" style="counter-reset: mw-Ref 7;"><span class="mw-reflink-text" id="mwjQ">[7]</span></a></sup>
<span class="mw-reference-text" id="mw-reference-text-cite_note-7"><cite about="#mwt43" class="citation web cs1" id="mwBRU"><a class="external text" href="https://www.jewishvirtuallibrary.org/history-and-overview-of-sachsenhausen-oranienburg-concentration-camp" id="mwBRY" rel="mw:ExtLink nofollow">"Sachsenhausen (Oranienburg): History &amp; Overview"</a>. <i id="mwBRc">jewishvirtuallibrary.org</i>. <a href="./Jewish_Virtual_Library" id="mwBRg" rel="mw:WikiLink" title="Jewish Virtual Library">Jewish Virtual Library</a><span class="reference-accessdate" id="mwBRk">. Retrieved <span class="nowrap" id="mwBRo">2022-09-27</span></span>.</cite><span about="#mwt43" class="Z3988" id="mwBRs" title="ctx_ver=Z39.88-2004&amp;rft_val_fmt=info%3Aofi%2Ffmt%3Akev%3Amtx%3Ajournal&amp;rft.genre=unknown&amp;rft.jtitle=jewishvirtuallibrary.org&amp;rft.atitle=Sachsenhausen+%28Oranienburg%29%3A+History+%26+Overview&amp;rft_id=https%3A%2F%2Fwww.jewishvirtuallibrary.org%2Fhistory-and-overview-of-sachsenhausen-oranienburg-concentration-camp&amp;rfr_id=info%3Asid%2Fen.wikipedia.org%3AApril+22"></span></span>