The First Monotheism: The Case for Zoroastrianism, Honestly Made
A standalone piece The claim that Zoroastrianism is the first monotheistic religion is made often, and it is made loosely as often as not. There is a strong, defensible version of it, and there is an overreaching one — and the difference is worth drawing carefully, because the defensible version is a genuinely major claim that holds, while the overreaching one collapses under a single good objection.
What this resource contributes
A standalone piece The claim that Zoroastrianism is the first monotheistic religion is made often, and it is made loosely as often as not. There is a strong, defensible version of it, and there is an overreaching one — and the difference is worth drawing carefully, because the defensible version is a genuinely major claim that holds, while the overreaching one collapses under a single good objection. This piece makes the case in its defensible form: that Zoroastrianism is, very plausibly, the first developed and enduring ethical monotheism in human history — and marks the lines that keep that claim standing. Two questions, not one "First monotheistic religion" is really two claims folded together, and an honest case has to answer both, each on the right evidence. There is the question of whether it was first — a matter of date .
Topics and source signals
Primary sources detected
Gathas · Avesta
Scholars detected
Mark S. Smith · Thomas Römer