Along with a Mithraic Median prototype and a Zurvanist Sassanid successor, it served as the state religion of the pre-Islamic Persian empires for more than a millennium, from around 600 BCE to 650 CE. Zoroastrianism was suppressed from the 7th century onwards following the Muslim conquest of Persia during 633–654. Recent estimates place the current number of Zoroastrians at around 190,000, with most living in India and in Iran; their number is declining.
Zoroastrianism in Agent of ByzantiumEdit
Zoroastrianism was the primary religion of the Persian Empire in the early 14th century.