Iranian History Explained: Why the 1979 Revolution Happened and 5 Key Facts to Know — Harvard Professor Insights

To understand Iran, one must first distinguish between ethnic and linguistic identities that are often conflated in Western discourse. Professor Tarek Masoud clarifies that while Iran is a predominantly Muslim country, it is not an Arab nation. The primary language, Persian (Farsi), belongs to the Indo-European family, making it linguistically closer to English or German than to Arabic. For instance, the Persian words for mother (madar) and father (pedar) share the same roots as their English counterparts.

In contrast, Arabic is a Semitic language, closely related to Hebrew. While Persian uses the Arabic script and has adopted many loanwords due to religious proximity, the fundamental structures remain distinct. This distinction is a source of national pride for many Iranians, who often highlight their unique contributions to science and mathematics.

Iran's religious landscape underwent a massive transformation starting with the Arab conquest in the 7th century AD. Before this, the region was the heart of Zoroastrianism, a monotheistic faith centered on elements like fire and the sun. While the population converted to Islam over subsequent centuries, many Zoroastrian traditions were woven into the fabric of Iranian culture.

Events like Nowruz (the Persian New Year) and Chaharshanbe Suri (leaping over fire) remain central to Iranian life today. These traditions serve as a bridge between the country's ancient heritage and its modern Islamic identity. Today, small Zoroastrian communities known as Parsis still exist, notably in South Asia.