Happy Nowruz (Persian New Year) congratulations from all of my heart which is a true Parsi (Aryan) This country is now occupied by other nationalities, not real Persians. Of course this is not to disrespect to Muslims and different nationalities. I am just celebrating it as a real Pars. However, I am not Ottoman, I do NOT know Turkish, I'm NOT from the invasion of Arabs, so I'm NOT Arab either. Perhaps approximately 5% of Iran are Persian (Real Parsi) now.
Actually my roots are "The Medes" (Old Persian Māda-, Ancient Greek: Μῆδοι, Hebrew: מָדַי) I'm not from "Ottoman Empire" , not "Arab" from "Muslim conquest of Persia". In fact, my roots are from "Zarandieh County". Zarandieh county was a part of the territory of the Medes and the first Iranian government (Real Persia) was formed in this county and townships around the city. But this is my roots, I was born in Tehran, also my father, grandfather and his father.
Nowruz (literally: "New Day") is the name of the Persian New Year, which is celebrated worldwide by the Iranian people, along with some other ethno-linguistic groups, as the beginning of the New Year. It has been celebrated for over 3,000 years in Western Asia, Central Asia, the Caucasus, the Black Sea Basin and the Balkans. It marks the first day of the first month (Farvardin) in the Iranian calendar. Nowruz is the day of the vernal equinox, and marks the beginning of spring in the Northern Hemisphere. It usually occurs on 21 March or the previous or following day, depending on where it is observed. The moment the sun crosses the celestial equator and equalizes night and day is calculated exactly every year, and families gather together to observe the rituals. It has been suggested that the famous Persepolis complex, or at least the palace of Apadana and the Hundred Columns Hall, were built for the specific purpose of celebrating a feast related to Nowruz.
Actually this country and its Nowruz has changed after "The Muslim conquest". You can read about it in Wikipedia.