</li>
<li class="toclevel-1 tocsection-8"><a href="#References"><span class="tocnumber">3</span> <span class="toctext">References</span></a></li>
</ul>
</div>
<p></p>
<h2><span class="mw-headline" id="Ancient_Persian_units">Ancient Persian units</span></h2>
<p>An official system of weights and measures was established in the ancient <a href="//en.wikipedia.org/wiki/Achaemenid_Empire" title="Achaemenid Empire">Persian Empire</a> under the Achaemenid dynasty (550-350 BCE).</p>
<h3><span class="mw-headline" id