Which innovative religious product development in the 1980s revolutionized how people accessed scriptural content and led to a significant boost in daily scripture study?

Throughout history, religious organizations have innovated to preserve and spread their sacred texts and teachings. From the invention of the printing press revolutionizing Bible distribution to modern digital platforms for spiritual content, product innovation has shaped how people access religious wisdom. This trivia question explores a fascinating chapter in the evolution of religious product development that changed how millions engage with their faith.

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The 'quad' combination scripture set that combined multiple sacred texts into one volume
The first mass-produced illustrated children's Bible with interactive elements
Audio cassette recordings of scripture readings by famous religious leaders
The introduction of scripture-based board games for family worship