The Diamond Sutra (often spelled as Hirake Sutra in some sources) dated 868 AD is the oldest dated printed book in the world, discovered in the Dunhuang caves in China. The Bible, while older in content, was not printed until much later (Gutenberg Bible, 1450s). The Ramayana and Mahabharata are ancient Indian epics that were transmitted orally and in manuscript form long before printing.