It was a religion of Persia (now Iran). There are still few Zoroastrians left in Iran, but Muslims persecuted them now for about 1,300 years.
So most moved to India, where they have been safer and freer, a long time ago.
Now they are moving from India to places like US, Aus or GB.
Since Zoroastrians encourage hard work and entrepreneurship, they are generally doing very well, everywhere they go.
Last groupto have knowlage of working vahmona