I'd consider the Essenians in Judea two millennia ago, the Assassins one millennium ago, the various new 'heretic' sects that appeared in Medieval Europe 800 years ago, and even Luther and Calvin fundamentalists in a similar sense as those today. They, too, were not, as it's sales people would have it, a return to some purer, earlier form. They were something new branched off older religions, and did so in response to then current events and developments in society.
In particular, I would remind people of the reason Luther and other Protestants threw out some books from the Bible: contradictions, factual contradictions. This was before the Enlightement. *Lunatic*, n. One whose delusions are out of fashion.
Why do you class the Assassins as fundamentalists?
I'm not 100% convinced either. And I'm sure I could present the argument rather better.
What happened in the 17th century that made all the difference is religious war and Newton's Principia. guaranteed to evoke a violent reaction from police is to challenge their right to "define the situation." --- David Graeber citing Marc Cooper
That is only a myth permeated presently in Protestant-majority, especially 'Anglo-Saxon' countries today. Luther was not an opponent of theocracy, nor of burning heretics and witches, nor of anti-semitism. Calvin established a kind of mini-Taleban in his city. The founders of settlements in what became the USA weren't persecuted who were hunted away but persecuters, sects who took religious judgement in their own hand, hunted away. But even bloody Cromwell was a religious fanatic.
Protestantism ended up as a(n involuntary) facilitator of the Enlightement only as a consequence of the Thirty Years War, and the Counter-Reformation in the areas given to Catholic rulers then.
BTW, not many know, Newton himself was a fundamentalist - one who rejected Athanasian Christianity (e.g. everything from the Nicean Creed), and who thought that his greates life achievement was not the theory of mechanics, not the theory of gravity, not his work on differential mathematics, but an almost forgotten book in which he attempted to reconcile the chronology of the Old Testament with that of then known ancient Middle Eastern royal lists (e.g. Egyptian, Assyrian, etc.). *Lunatic*, n. One whose delusions are out of fashion.
More bloody reading to do. But that's sort of what I meant.
But I am scared (-:
Then again, my mentor is a Catholic.....