Who invented the type of script used in autographs?
Autograph (Assyriology) An autograph in Assyriology is the hand-copy of a cuneiform clay-tablet. Producing an autograph is often the first step of a tablet's archaeological interpretation and the autograph is frequently the authoritative form that is published as source material. Autographing the text is followed by transliteration, transcription and translation.
Yelü Diela Yelü Diela (耶律迭剌), younger brother of Khitan Emperor Yelü Abaoji, invented the "Khitan small script" to accommodate the more agglutinative Khitan language about 925 — based partly on the earlier "Khitan large script" or Chinese-like logographic writing, but also after having been inspired by the vertically written Old Uyghur alphabet that was shown to him by an ambassador.