in the modern world. The more common of the two is mostly produced on one hand and can be traced back to alphabetic signs used in Europe from at least the early 15th century.

Some manual representations of non-Roman scripts such as Chinese, Japanese, Devanagari (e.g. the Nepali manual alphabet), Hebrew, Greek, Thai and Russian alphabets are based to some extent on the one-handed Latin alphabet described above. In some cases, however, the