1400-600 BCE: Speculated dates of Zoroaster's birth
910-950 CE: Traditional date of arrival of Parsis to India fleeing from Persecution in Iran.
1970 CE: Slow migration of Parsis to western countries
1970-96 CE: Establishment of Halls of Worship and Zoroastrian Associations in several U.S., Canadian, Australian, and New Zealand cities. Establishment of Federation of Zoroastrian Association of North America (FEZANA)