I kid you not. The famous city of Isfahan was established by Jews and usd to be called Yahudieh. As to what happened to all the Jews, the same thing that happened to all the Zoroastrians. Outright forced conversions as well as forced conversions by imposing impossible living conditions and taxes on the Jews. It became realy bad whe the Safavid's came to power. Look it up.
Opposition leader Isaac Herzog to speak at anti-violence rally in Tel Aviv on Sat. night (Haaretz)
from the article: Endangering the Jews of Iran