Historically, Iran was commonly referred to as "Persia" in the Western world. [9] Likewise, the modern-day ethnonym "Persian" was typically used as a demonym for all Iranian nationals, … · Persia, historic region of southwestern Asia associated with the area that is now modern Iran. The term Persia was used for centuries and originated from a region of southern … · Many people think of Persia as synonymous with Islam, though Islam only became the dominant religion in the Persian Empire after the Arab conquests of the seventh century. · Ancient Persia is known for the establishment of the first postal system, agricultural innovations, significant rights for women, religious tolerance, early refrigeration and air … · Persia refers to the historical and cultural region centered on the Iranian Plateau, a high-altitude expanse in southwestern Asia that forms the core of modern Iran.