Avesta as "Fragments Tahmuras"; and the "Hadokht Nask" "volume of the scriptures" with two fragments of eschatological significance. Only texts preserved in the Avestan language count as scripture and are part of the Avesta. Several other secondary works are nonetheless crucial to Zoroastrian theology and scholarship. The most notable among the Middle Persian texts are the "Dēnkard" ("Acts of Religion"), dating from the ninth century; the "Bundahishn" ("Primordial Creation"), finished in the eleventh or twelfth century, but containing older material; the "Mainog-i-Khirad" ("Spirit of Wisdom"), a religious conference on questions of faith; and the "Book of Arda Viraf", which is especially
Mehrdad Avesta and history of arts at the University of Tehran. He married two times in 1954 and 1966 and he had one son and three daughters. Avesta died in his office at Vahdat Hall of Tehran while he was editing a poem work. Mehrdad Avesta was born in 1929, in Borujerd. Born to a family of artistic history, he was also greatly interested in art, so he started writing poems from early ages, which were also published. He got his degree in Theology, and then studied philosophy. Along his formal education, he started working as a teacher. Besides, he served in