Chicken Scratches? No, the Persian Cuneiform Syllabary! Originally pressed in clay, now just press a key.

Each possible syllable -- consonants plus either a, i, u -- is available from the consonant key when pressed alone, with Shift, or with Option. For those characters that don't exist in the original syllabary, a small centered dot is a clue that another key should be used instead.

With the syllabary there are several ideographs that were used on the tablets; sky, earth, king, god, and, of course, Ahuramazda.