This book presents an English-language translation of Ris l -yi Mu n ya, or the Mu n ya Epistle. Ris l -yi Mu n ya is one of the earliest known works of Na r al-D n s (1201-1274), an intellectual luminary of the 13th century CE. The work is notable for the choice of T u s 's native Persian as the language of the text. In addition, T u s organized his volume into a four-part structure, which went on to become a popular template for the Islamic astronomers who succeeded him. This book helped ensure the patronage of ...
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This book presents an English-language translation of Ris l -yi Mu n ya, or the Mu n ya Epistle. Ris l -yi Mu n ya is one of the earliest known works of Na r al-D n s (1201-1274), an intellectual luminary of the 13th century CE. The work is notable for the choice of T u s 's native Persian as the language of the text. In addition, T u s organized his volume into a four-part structure, which went on to become a popular template for the Islamic astronomers who succeeded him. This book helped ensure the patronage of T u s 's courtly patrons during his decades-long stay with the Isma l s, as well as the continuation of his remarkable career under the first Ilkhanid rulers of Persia. This translation helps make this notable treatise accessible to English language readers. It is among a handful of English translations of major astronomical works dealing with hay'a/cosmography in the Islamic world. Subsequently T u s was to pen hisown commentary on the work (the all-i Mushkil t-i Mu n ya, or A solution to the difficulties of the Mu n ya) and he used this occasion to discuss his celebrated mathematical formulation "the T u s Couple" (a concept that he merely hinted at in the Ris l -yi Mu n ya).
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