September 1999 ISBN 0-201-61633-5 ISO/IEC 10646-1:2000 38 49,259 Cherokee , Ethiopic , Khmer , Mongolian , Myanmar , Ogham , Runic alphabet , Sinhala , Syriac , Thaana , Unified Canadian Aboriginal Syllabics , and Yi Syllables added, as well as a set of Braille patterns. [15] 3.1 March 2001