The <a href="https://en.wikipedia.org/wiki/Treaty_of_Versailles" id="mwrg" rel="mw:WikiLink" title="Treaty of Versailles">Treaty of Versailles</a> takes effect, officially ending World War I for all combatant nations except the United States.<sup about="#mwt114" class="mw-ref reference" data-mw='{"name":"ref","attrs":{},"body":{"id":"mw-reference-text-cite_note-20"}}' id="cite_ref-20" rel="dc:references" typeof="mw:Extension/ref"><a href="./January_10#cite_note-20" id="mwrw" style="counter-reset: mw-Ref 20;"><span class="mw-reflink-text" id="mwsA">[20]</span></a></sup>
<span class="mw-reference-text" id="mw-reference-text-cite_note-20"><cite about="#mwt111" class="citation book cs1" id="CITEREFStreissguth2007">Streissguth, Thomas (2007). <a class="external text" href="https://books.google.com/books?id=FtbnIe103p4C" id="mwCBk" rel="mw:ExtLink nofollow"><i id="mwCBo">The Roaring Twenties</i></a>. New York: Facts On File. p.<span id="mwCBs" typeof="mw:Entity"> </span>46. <a class="mw-redirect" href="./ISBN_(identifier)" id="mwCBw" rel="mw:WikiLink" title="ISBN (identifier)">ISBN</a><span id="mwCB0" typeof="mw:Entity"> </span><a href="./Special:BookSources/9780816064236" id="mwCB4" rel="mw:WikiLink" title="Special:BookSources/9780816064236"><bdi id="mwCB8">9780816064236</bdi></a>.</cite><span about="#mwt111" class="Z3988" id="mwCCA" title="ctx_ver=Z39.88-2004&amp;rft_val_fmt=info%3Aofi%2Ffmt%3Akev%3Amtx%3Abook&amp;rft.genre=book&amp;rft.btitle=The+Roaring+Twenties&amp;rft.place=New+York&amp;rft.pages=46&amp;rft.pub=Facts+On+File&amp;rft.date=2007&amp;rft.isbn=9780816064236&amp;rft.aulast=Streissguth&amp;rft.aufirst=Thomas&amp;rft_id=https%3A%2F%2Fbooks.google.com%2Fbooks%3Fid%3DFtbnIe103p4C&amp;rfr_id=info%3Asid%2Fen.wikipedia.org%3AJanuary+10"></span></span>