Why stop there? Why not go back to when the Greeks made Darius mad and started the Greco-Persian wars?

If you want the Iranian people to engage in a forever war against the West, this is the kind of attitude you must hold.

“Some arbitrary injustice done by dead people forever justifies us to do whatever we want” isn’t a viable political or culturally progressive route to go down. Vietnam got over it. Why can’t Iran? Do they need a nuclear bomb to get over it? Will they stop hanging gay people, helping Russia, and providing militia support to destabilize Arab countries once they get what they want (whatever that is)? What date or specific thing do they need?

Can anyone say?

Of course not. Because totalitarian regimes always have to obsess over past injustices, perceived or real, to drum up support for the regime so that it can continue to hold power against the best interests of their people. It masks their own failures, like Tehran running out of water because their government spent all their money bombing innocent people.