Mesopotamia
Clay tablets were made in Mesopotamia. Sugarcanes were used to write on these clay tablets. To make carvings on the clays easier, a sharp wedge was later added to the end of sugarcanes. For applying these wedges, this type of writing is known as the wedge-shaped impression or script in the history of technology. The relief of Darius I in Bistun is one example of such a script. In other regions such as Egypt where papyrus was available, the writing was performed in another method
The emergence of alphabet could be considered as the pinnacle of the evolutionary trend of writing. Most of scholars believe that the invention of alphabet originates in the modern Middle East. It is estimated that the alphabet was invented in 3,000 B.C. The birthplace of the alphabet was the Sinai Peninsula from which the alphabet was taken to other territories by Phoenician merchants. The modern Persian and Arabic alphabets take their roots in the early alphabets of Phoenicians
Aryans
Apparently Aryans who immigrated to Persia did not have any scripts. The history of the invention of cuneiform writing dates back to the period when Teispes (640-675 B.C.) and his successor, Ariaramnes, ruled ancient Persia
The Medes
Although numerous works have not remained from the time of the Medes, it is clear that they had their own scripts and writing which turned into the basis of the Achaemenides script in the later periods