Mem and Zin is
a Kurdish classic love story written down in 1692
is based on a true story, laid down from generation to generation through oral tradition.
It appears to be often compared to Romeo and Juliet (1597). I first saw a reference in an English translation's Preface
But the poetical story is more than a tragic Romeo and Juliet
A search to see if this was a common reference ("mem and zin kurdish romeo and juliet") brought up quite a few results referring to it with variations "Kurdish 'Romeo and Juliet'". (Admittedly I probably biased this search a bit by putting "kurdish romeo and juliet" in the search string, but the point is still made)
Romeo and Juliet was first performed before Mem and Zin was written down, but as Mem and Zin originated as an oral tradition it came first. I'm interested to know when the two started being compared to each other. The similarities in the stories are evident on a broad review of the plotlines of both, so it seems a fairly obvious comparison to draw. However any comparison would rely on someone knowing both stories and then wanting to point the connections out.
When/where was "Mem and Zin" first compared to "Romeo and Juliet"?