One way Zoroastrianism changed over time is
when many scholars had disputed the historical forms of faith of Zoroastrianism
because of its ancient faith at that time which is recorded in the history. These
scholars also did not agree about the unknowns of this religion because one
reason is that there is a big gap between Zarathustra, the prophet who founded Zoroastrianism,
and the Magi, the adherent class of priests.