Which product innovation is credited with revolutionizing religious text distribution in the 1450s, making sacred writings more widely accessible to the general public?

Throughout history, religious texts have undergone significant transformations in how they're produced, packaged, and distributed. From ancient scrolls to modern digital platforms, the 'product design' of sacred texts reveals fascinating innovations that shaped religious practice and accessibility. This trivia question focuses on a pivotal moment in religious publishing history that democratized access to spiritual knowledge.

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Gutenberg's movable-type printing press, which first mass-produced the Bible
The development of parchment codices, replacing scrolls with book-like formats
The creation of illuminated manuscripts with gold leaf decoration
The introduction of standardized Latin Vulgate translation by Pope Damasus I