<a href="https://en.wikipedia.org/wiki/The_Troubles_in_Ulster_(1920–1922)" id="mwsg" rel="mw:WikiLink" title="The Troubles in Ulster (1920–1922)">The Troubles in Northern Ireland (1920–1922)</a> begin with a week of sectarian violence in <a href="https://en.wikipedia.org/wiki/Derry" id="mwsw" rel="mw:WikiLink" title="Derry">Derry</a>.<sup about="#mwt28" class="mw-ref reference" data-mw='{"name":"ref","attrs":{},"body":{"id":"mw-reference-text-cite_note-5"}}' id="cite_ref-5" rel="dc:references" typeof="mw:Extension/ref"><a href="./June_18#cite_note-5" id="mwtA" style="counter-reset: mw-Ref 5;"><span class="mw-reflink-text" id="mwtQ">[5]</span></a></sup>
<span class="mw-reference-text" id="mw-reference-text-cite_note-5"><a class="external text" href="https://www.bbc.co.uk/news/uk-northern-ireland-foyle-west-55252892" id="mwB0g" rel="mw:ExtLink nofollow">"Londonderry's forgotten week of bloodshed' in 1920"</a>. <a href="./BBC_News" id="mwB0k" rel="mw:WikiLink" title="BBC News">BBC News</a>, 20 April 2023.</span>