The <a href="https://en.wikipedia.org/wiki/Imperial_Japanese_Navy" id="mwwQ" rel="mw:WikiLink" title="Imperial Japanese Navy">Imperial Japanese Navy</a> battleship <i id="mwwg"><a href="https://en.wikipedia.org/wiki/Japanese_battleship_Kawachi" id="mwww" rel="mw:WikiLink" title="Japanese battleship Kawachi">Kawachi</a></i> blows up at <a href="https://en.wikipedia.org/wiki/Yamaguchi_Prefecture" id="mwxA" rel="mw:WikiLink" title="Yamaguchi Prefecture">Shunan</a>, western <a href="https://en.wikipedia.org/wiki/Honshu" id="mwxQ" rel="mw:WikiLink" title="Honshu">Honshu</a>, Japan, killing at least 621.