Does "compelling" means Persia is going to take it, or are they just considering?
If they are just considering, add Domestication to the list of stuff to give them and just up the price by 1.
Also, will all "Optional" tech be listed outside of the box? Because Persia had acupuncture (I got it from them!) and now its gone, I'm sure they still have it, but it would be annoying to try to remember what they have and what not when selling tech.