المسند

Program for writing in the letters of the Arabic Yemeni Musnad, conversion from and to Arabic, the Himyari calendar and the game of learning the letters of the Musnad.
The Musnad line or the Himyari script that the Orientalists call the memorial line is an ancient writing system that developed in Yemen in southern Arabia, around the ninth to tenth century B.C., and it is one of the forms of southern Arabic writing, and the writing system used in the Arabian Peninsula for a long time, until it was derived from it Jazm script from which the Arabic alphabet is derived.
For more, please see Wikipedia at this link:
https://ar.wikipedia.org/wiki/ Dateline