Anonymous treatise on the calculation of days and months
Add MS 7492, ff 49v-52r
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The record is made up of Ff. 48v-52r. It was created in 16th century. It was written in Arabic. The original is part of the British Library: Oriental Manuscripts.
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Brief anonymous treatise on the calculation of days and months. An instruction for calculating hijrī years indicates the date of the text's composition as 849/1445-46, during the second reign of the Ottoman sultan Murād II (مراد الثاني, reg. 1446-51, see f. 50v, lines 6-9).
Instructions for finding the first day of each month for any ( hijrī ) year (ff. 51v line 10- 52r, line 1), are followed by a summarising table, the latter annotated with a dated note in the head margin calculating the symbol for 1097/1685-86 as zāy (dotless ز, f. 52r).
Begins (f. 49v, lines 2-5):
الحمد لله الذي أوجد العالم وأضاءه بالسراج السيار وأناره بالنير
السريع السير بالفلك الدوار والصلوة على نبيه محمد أشرف الخلائق
والأنام وعلى آله الذي عملو (!) بالعلوم الشريفة والمعارف العظام
ما دارت الأفلاك بما لم يختلف...
Ends (f. 51v, line 17- f. 52r, line 1):
...فإنه هما واحد فيهما فعل هذا وضعنا كل شهر حرفا
بالحبر الأسود لأول النجومي حيث اختلفاوبالأحمر حيث اتفقا وإذا
تمت هذه الثانية عادت من أولها وتسلسلت إلى الأبد وإلى
إلى الأزل تمت
- Extent and format
- Ff. 48v-52r
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- 162 imagesRef: Add MS 7492
- Written in
- Arabic in Arabic script
- Type
- Manuscript item
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- Original held at
- British Library: Oriental Manuscripts
- Access conditions
Unrestricted
- Archive reference
- Add MS 7492, ff 49v-52r
- Date(s)
- 16th century (CE, Gregorian)
- Finding aids
Cureton, William and Charles Rieu, Catalogus codicum manuscriptorum orientalium qui in Museo Britannico asservantur. Pars secunda, codices arabicos amplectens (London: The British Museum, 1846-71), Item 395 (II), p. 188
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Anonymous treatise on the calculation of days and months, British Library: Oriental Manuscripts, Add MS 7492, ff 49v-52r, in Qatar Digital Library <https://www.qdl.qa/archive/81055/vdc_100143915509.0x000002> [accessed 17 July 2026]
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- Reference
- Add MS 7492, ff 49v-52r
- Title
- Anonymous treatise on the calculation of days and months
- Pages
- 49v:52r
- Author
- Please see item description
- Usage terms
- Public Domain