<a class="mw-redirect" href="https://en.wikipedia.org/wiki/Thirteen_Years'_War_(1454–66)" id="mwJA" rel="mw:WikiLink" title="Thirteen Years' War (1454–66)">Thirteen Years' War</a>: A Polish army under Piotr Dunin decisively defeats the Teutonic Order at the <a href="https://en.wikipedia.org/wiki/Battle_of_Świecino" id="mwJQ" rel="mw:WikiLink" title="Battle of Świecino">Battle of Świecino</a>.<sup about="#mwt24" class="mw-ref reference" data-mw='{"name":"ref","attrs":{},"body":{"id":"mw-reference-text-cite_note-3"}}' id="cite_ref-3" rel="dc:references" typeof="mw:Extension/ref"><a href="./September_17#cite_note-3" id="mwJg" style="counter-reset: mw-Ref 3;"><span class="mw-reflink-text" id="mwJw">[3]</span></a></sup>
<span class="mw-reference-text" id="mw-reference-text-cite_note-3"><cite about="#mwt21" class="citation book cs1" id="CITEREFEdmund_CieślakCzesław_Biernat1995">Edmund Cieślak; Czesław Biernat (1995). <i id="mwCDU">History of Gdańsk</i>. Fundacji Biblioteki Gdánskiej. p.<span id="mwCDY" typeof="mw:Entity"> </span>91. <a class="mw-redirect" href="./ISBN_(identifier)" id="mwCDc" rel="mw:WikiLink" title="ISBN (identifier)">ISBN</a><span id="mwCDg" typeof="mw:Entity"> </span><a href="./Special:BookSources/9788386557004" id="mwCDk" rel="mw:WikiLink" title="Special:BookSources/9788386557004"><bdi id="mwCDo">9788386557004</bdi></a>.</cite><span about="#mwt21" class="Z3988" id="mwCDs" title="ctx_ver=Z39.88-2004&amp;rft_val_fmt=info%3Aofi%2Ffmt%3Akev%3Amtx%3Abook&amp;rft.genre=book&amp;rft.btitle=History+of+Gda%C5%84sk&amp;rft.pages=91&amp;rft.pub=Fundacji+Biblioteki+Gd%C3%A1nskiej&amp;rft.date=1995&amp;rft.isbn=9788386557004&amp;rft.au=Edmund+Cie%C5%9Blak&amp;rft.au=Czes%C5%82aw+Biernat&amp;rfr_id=info%3Asid%2Fen.wikipedia.org%3ASeptember+17"></span></span>