Some scholars say that Zoroastrianism had profound effects on the way that the three [[Abraham|Abrahamic]] religions were formed. Indeed, Zoroastrianism is the oldest religion still practiced by a sizable community. It is also thought by many to be the world's first monotheistic religion.<ref>[http://tenets.zoroastrianism.com/ Tenets of Zoroastrianism]</ref>
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Some scholars say that Zoroastrianism had profound effects on the way that the three [[Abraham|Abrahamic]] religions were formed. Indeed, Zoroastrianism is the oldest religion still practiced by a sizable community. It is also thought by many to be the world's first monotheistic religion.<ref>[http://tenets.zoroastrianism.com/ Tenets of Zoroastrianism]</ref> Although in "Also Sprach Zarathustra" he let slip his Atheism as well. In section 3.3 he wrote "I am Zarathustra the godless, who speaks: who is more godless than I, that I may delight in his instruction?"