On This Day In History On This Day In History: ‘Diamond Sutra’ The Oldest Dated, Printed Book Is Published – On May 11, 868 MessageToEagle.com | May 11, 2016 MessageToEagle.com – On May 11, 868, the Diamond Sutra was published in northern China. This priceless religious teaching survives as the oldest dated, printed book. The manuscript was one of many discovered in the Read More