The <a href="https://en.wikipedia.org/wiki/Tomb_of_Cyrus" class="extiw" title="en:Tomb of Cyrus">Tomb of Cyrus</a>
<a href="https://en.wikipedia.org/wiki/Robert_Ker_Porter" class="extiw" title="en:Robert Ker Porter">Robert Ker Porter</a>
in or before 1821
Sir Robert Ker Porter (1821), "Travels in Georgia, Persia, Armenia, ancient Babylonia, &amp;c. &amp;c.", p. <a rel="nofollow" class="external text" href="https://archive.org/stream/travelsingeorgia01port#page/n563/mode/2up">499</a>