Anonymous 11/15/2023 10:22:00 No. 517 [Open] [Reply] 0b17ab Actions report Hide Thread Hide User Hide Post Jingangjing jpg (10.38 MB, 4917x3438) Front line of the Chinese Diamond Sūtra, printed in the 9th year of the Xiantong era of the Tang dynasty, i.e. 868 CE, the oldest known dated printed book in the world. British Library.