If Muhammad had never stepped forward to introduce Islam, might Zoroastrianism have potentially filled the void between Eastern Roman Empire and Persia?

by [deleted]
depanneur

Sorry, but your submission has been removed because we don't allow hypothetical questions. If possible, please feel free to rephrase the question so that it does not call for such speculation, and resubmit Otherwise, this sort of thing is better suited for /r/HistoryWhatIf.