Yantarny
...that in 1827, the only open pit amber mine in the world was established in Yantarny?
...that in <a href="./1827" id="mwBpo" rel="mw:WikiLink" title="1827">1827</a>, the only open pit <a href="./Amber" id="mwBps" rel="mw:WikiLink" title="Amber">amber</a> mine in the world was established in <b id="mwBpw"><a href="./Yantarny" id="mwBp0" rel="mw:WikiLink" title="Yantarny">Yantarny</a></b>?