Which publishing innovation is credited with making the Bible the first mass-market religious bestseller in the 1450s?

Religious publishing has evolved dramatically over centuries, from hand-copied manuscripts to mass-market editions. Publishers have faced unique challenges in marketing these deeply personal texts while respecting their sacred nature. This poll tests your knowledge about a significant marketing milestone in religious publishing that transformed how spiritual texts reached the public.

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Gutenberg's movable type printing press
Luther's German translation marketing strategy
King James Version royal endorsement campaign
The Vatican's illuminated manuscript distribution network