The sixth All-Russian Conference of the <a href="https://en.wikipedia.org/wiki/Russian_Social_Democratic_Labour_Party" id="mwYA" rel="mw:WikiLink" title="Russian Social Democratic Labour Party">Russian Social Democratic Labour Party</a> (<a class="mw-redirect" href="https://en.wikipedia.org/wiki/Prague_Party_Conference" id="mwYQ" rel="mw:WikiLink" title="Prague Party Conference">Prague Party Conference</a>) opens. In the course of the conference, <a href="https://en.wikipedia.org/wiki/Vladimir_Lenin" id="mwYg" rel="mw:WikiLink" title="Vladimir Lenin">Vladimir Lenin</a> and his supporters break from the rest of the party to form the <a class="mw-redirect" href="https://en.wikipedia.org/wiki/Bolshevik" id="mwYw" rel="mw:WikiLink" title="Bolshevik">Bolshevik</a> movement.<sup about="#mwt60" class="mw-ref reference" data-mw='{"name":"ref","attrs":{},"body":{"id":"mw-reference-text-cite_note-10"}}' id="cite_ref-10" rel="dc:references" typeof="mw:Extension/ref"><a href="./January_5#cite_note-10" id="mwZA" style="counter-reset: mw-Ref 10;"><span class="mw-reflink-text" id="mwZQ">[10]</span></a></sup>
<span class="mw-reference-text" id="mw-reference-text-cite_note-10"><cite about="#mwt57" class="citation book cs1" id="CITEREFVladimir_Ilʹich_Lenin1971">Vladimir Ilʹich Lenin (1971). <a class="external text" href="https://books.google.com/books?id=cY4fAQAAMAAJ" id="mwCEI" rel="mw:ExtLink nofollow"><i id="mwCEM">Collected Works</i></a>. Progress Publishers. p.<span id="mwCEQ" typeof="mw:Entity"> </span>536.</cite><span about="#mwt57" class="Z3988" id="mwCEU" title="ctx_ver=Z39.88-2004&amp;rft_val_fmt=info%3Aofi%2Ffmt%3Akev%3Amtx%3Abook&amp;rft.genre=book&amp;rft.btitle=Collected+Works&amp;rft.pages=536&amp;rft.pub=Progress+Publishers&amp;rft.date=1971&amp;rft.au=Vladimir+Il%CA%B9ich+Lenin&amp;rft_id=https%3A%2F%2Fbooks.google.com%2Fbooks%3Fid%3DcY4fAQAAMAAJ&amp;rfr_id=info%3Asid%2Fen.wikipedia.org%3AJanuary+5"></span></span>