In March 1907. The Diamond Sūtra, a woodblock printed Buddhist scripture dated AD 868, is discovered by Aurel Stein at the Mogao Caves near Dunhuang in China. It is said to be "the earliest complete survival of a 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". via @wikipedia
The Diamond Sutra at PG:
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The Diamond Sutra (Chin-Kang-Ching) or Prajna-Paramita by Unknown
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