from the Sassanian period. Among the texts included in the unique MK are: the Kar-Namag i Ardashir i Pabagan is a hagiography of Ardashir I, the founder of the Sassanid dynasty the Ayadgar-i Zariran, the "Memorial or Zarer", is the only surviving specimen of Iranian epic poetry composed in Middle Persian. the Shahrestaniha i Eranshahr, is a catalogue of the four regions of the Sassanid empire with mythical and/or historical stories related to their founding. several andarz texts, the Iranian type of wisdom literature containing advice and injunctions for proper behavior. the Wizarishn i Chatrang, "Explanation of Chess", also known as the Chatrang Namag, is a humorous story of how an Indian king sent a game of chess to the Sassanid court to test Iranian wits, in response to which a priest invented backgammon to challenge the Indian king. the Drakht i Asurig, "the Assyrian tree", is an originally Parthian poem recast into Book Pahlavi but retaining many Parthian phrases and idioms. the Abdih ud Sahigih i Sagistan is a description of the "Wonders and Remarkable Features of Sistan". the Khusraw va Redag, "Khusraw and the Page", is an account of a conversation between the king and a young boy who would like to be a page. This work is a source of information on the sensual delights of the Sassanian court. the Mah farvardin Ruz khordad is a book that described all the events which historically or mythically occurred on the 6th day of the Persian month of Farvardin. Especially important to cultural and law historians is the Madayan i Hazar Dadestan, "Book of a Thousand Judgements", a 7th-century compilation of actual and hypothetical case histories collected from Sassanian court records and transcripts. Only a single manuscript of this unique text survives. Scribes also created several glossaries for translating foreign languages. Of these, two have survived: Frahang-i Pahlavig, a glossary of common Aramaic heterograms (huzvarishn) used in written Middle Persian. Frahang-i Oim-evak, a dictionary of Avestan words and phrases. Several other works, now lost, are known of from references to them in other languages. Works of this group include: in about the 5th century, priests attached to the Sassanid court began to compile an immense chronicle, the Khwaday Namag ("Book of Kings"), a legendary genealogy of the Sassanid kings in which the Sassanians were dynastically linked to Vishtaspa, i.e. Zoroaster's patron and the legendary founder of the mythological Kayanian