Battle of Buda (1849)
... that Hungarian National Defence Day falls on 21 May, the anniversary of the climax of the Battle of Buda (1849)?
... that <a href="./Hungary" id="mwsw" rel="mw:WikiLink" title="Hungary">Hungarian</a> National Defence Day falls on <span about="#mwt16" class="nowrap" data-mw='{"parts":[{"template":{"target":{"wt":"Nowrap","href":"./Template:Nowrap"},"params":{"1":{"wt":"21 May"}},"i":0}}]}' id="mwtA" typeof="mw:Transclusion">21 May</span>, the anniversary of the climax of the <b id="mwtQ"><a class="mw-redirect" href="./Battle_of_Buda_(1849)" id="mwtg" rel="mw:WikiLink" title="Battle of Buda (1849)">Battle of Buda (1849)</a></b>?