traditional Korean units
... that the South Korean government tried to metricate the country unsuccessfully four times before finally criminalizing traditional Korean units in 2007?
... that the South Korean government tried to <a href="./Metrication" id="mwkw" rel="mw:WikiLink" title="Metrication">metricate</a> the country unsuccessfully four times before finally criminalizing <b id="mwlA"><a class="mw-redirect" href="./Korean_units" id="mwlQ" rel="mw:WikiLink" title="Korean units">traditional Korean units</a></b> in 2007?