Parsi or Parsee refers to a member of the larger of the two Zoroastrian communities in South Asia, the other being the Irani community. According to tradition, the present-day Parsis descend from a group of Zoroastrians of Iran who immigrated to India during the 10th century AD, to avoid persecution by Muslim invaders who were in the process of conquering Iran. At the time of the Arab invasion of Iran, the dominant religion of the region was Zoroastrianism. The Iranians rebelled against the Arab invaders for almost 200 years; in Iran this period is now known as the "Two "Centuries of Silence" or "Period of Silence". After many failed attempts to free the country from Arab domination, the Iranians were forced to either pay heavy taxes (Jizya) or to convert to Islam, the latter being the ultimate goal of the new rulers and thus the easier way.
Contributions by Fullstop, SouthernComfort, and Trppo.