premise: According to some, Zoroastrianism's major features have been influential.
hypothesis: Zoroastrianism . Major features of Zoroastrianism , such as messianism , heaven and hell , and free will have , some believe , influenced other religious systems , including Second Temple Judaism , Gnosticism , Christianity , and Islam . Zoroastrianism has no major theological divisions , though it is not uniform ; modern-era influences having a significant impact on individual and local beliefs , practices , values and vocabulary , sometimes merging with tradition and in other cases displacing it .