NPOV : See what the dispute in the "Decline and Fall section" is about and fix it and Add the negative side (like the point of view of people like Motahhari, perhaps from the book خدمات متقابل ایران و اسلام).
Verify : Find sources for the maps and unreferenced paragraphs and Check sources, specially the Persian ones.
Other : For local texts, use middle Persian (Pahlavi) instead of modern Persian