A seyagh accountancy was a commercial and ministerial-official system which includes a collection of calculations, agendum of writing a budget, resource allocation, codification, and writing a bill to simple official income and expenditures. A boundless ministerial territory encompasses caesareans of Achaemenian, Sassanian, Abbassian, and Seljuk to Patriarch, Safavid, Osmanli, and Qajars from India, Pakistan, and Asia median to Asia Minor, Anatolian, Shamat, and Egypt in the route of the silk path. In this geographical latitude, it records and registers the whole calculations of Mostofian and merchants with the seyagh in the eminent Iranian cultural realm until 1307 SH ('Shamsi Hijri' or 'Solar Hijri'). What is Seyagh? The seyagh is as the methods of writing an esoteric number in order to register and inform pecuniary digits (money) and material (product weight) which popularized in the historical past in the expansion of Iran and its peripheral regions. It records and registers the entire of the current earnings and payments in the community with these digits by the means of tradespeople, merchants, institutions, and authorities of a calculation bureau. The scrutineers and auditors administrate under an observation on the income and expenditure of these earnings and payments. Sassanian era in the universal history is a very important period. In this period, Christianity religion consists of its own structure of speech, religious jurisprudence, and government and has a quorum in the realm of Sassanian rival.

Asad Allah Abdoli Ashtiani