<Ul> <Li> Western Arabic </Li> <Li> Eastern Arabic </Li> </Ul> <Ul> <Li> Bengali </Li> <Li> Gurmukhi </Li> <Li> Indian </Li> <Li> Sinhala </Li> <Li> Tamil </Li> </Ul> <Ul> <Li> Balinese </Li> <Li> Burmese </Li> <Li> Dzongkha </Li> <Li> Gujarati </Li> <Li> Javanese </Li> <Li> Khmer </Li> <Li> Lao </Li> <Li> Mongolian </Li> <Li> Thai </Li> </Ul> <Tr> <Th> East Asian </Th> </Tr>

Who invented the number system based on 10