series of explosions
...that a series of explosions destroyed two miles of Louisville, Kentucky's sewer system on Friday the 13th in February 1981?
...that a <b id="mwBnk"><a href="./Louisville_sewer_explosions" id="mwBno" rel="mw:WikiLink" title="Louisville sewer explosions">series of explosions</a></b> destroyed two miles of <a href="./Louisville,_Kentucky" id="mwBns" rel="mw:WikiLink" title="Louisville, Kentucky">Louisville, Kentucky</a>'s <a class="mw-disambig" href="./Sewer" id="mwBnw" rel="mw:WikiLink" title="Sewer">sewer</a> system on <a href="./Friday_the_13th" id="mwBn0" rel="mw:WikiLink" title="Friday the 13th">Friday the 13th</a> in February 1981?