The Diamond Sutra (Sanskrit: Vajracchedikā Prajñāpāramitā Sūtra) is a Mahāyāna (Buddhist) sutra from the genre of Prajñāpāramitā ('perfection of wisdom') sutras. Translated into a variety of languages over a broad geographic range, the Diamond Sūtra is one of the most influential Mahayana sutras in East Asia, and it is particularly prominent within the Chan (or Zen) tradition, along with the Heart Sutra. A copy of the Tang dynasty–Chinese version of the Diamond Sūtra was found among the Dunhuang manuscripts in 1900 by Daoist monk Wang Yuanlu and sold to Aurel Stein in 1907. They are dated back to 11 May 868. It is, in the words of the British Library, "the earliest dated printed book". It is also the first known creative work with an explicit public domain dedication, as its colophon at the end states that it was created "for universal free distribution". Title The Sanskrit title for the sūtra is the Vajracchedikā Prajñāpāramitā Sūtra, which may be translated roughly as the "Vajra Cutter Perfection of Wisdom Sūtra" or "The Perfection of Wisdom Text that Cuts Like a Thunderbolt". In English, shortened forms such as Diamond Sūtra and Vajra Sūtra are common. The title relies on the power of the vajra (diamond or thunderbolt, but also an abstract term for a powerful weapon) to cut things as a metaphor for the type of wisdom that cuts and shatters illusions to get to ultimate reality. The sutra is also called by the name "Triśatikā Prajñāpāramitā Sūtra" (300 lines Perfection of Insight sutra). The Diamond Sūtra is highly regarded in East Asian countries with traditions of Mahayana Buddhism. Translations of this title into the languages of some of these countries include: , , ; shortened to , , ; shortened to , , ; shortened to , ; shortened to , History The exact date of the composition of the Diamond Sūtra in Sanskrit is uncertain—arguments for the 2nd and 5th centuries have been made. The first Chinese translation dates to the early 5th century, but, by this point, the 4th or 5th century monks Asanga and Vasubandhu seem to have already authored authoritative commentaries on its content. The Vajracchedika sutra was an influential work in the Mahayana Buddhist tradition. Early translations into a number of languages have been found in locations across Central and East Asia, suggesting that the text was widely studied and translated. In addition to Chinese translations,