The Samarkand Kufic Quran, preserved at Tashkent, is a Kufic manuscript, in Uzbek tradition identified as one of Uthman's manuscripts, but dated to the 8th or 9th century by both paleographic studies and carbon-dating of the parchment.[14][15] Radio-carbon dating showed a 95.4% probability of a date between 795 and 855.[15]