{"book":"adl0290","page":181,"text":"۱۷۲\n\n۳۶۵ روز و در سال چهارم یعنی در سال لیپ\n۳۶۶ روز حساب میکنند لاکن به این طریق\nدر ۴۰۰ سال صد روز زیاده می شود و بموجب\nحساب باید که ۹۷ روز یعنی تقریبًا\n۹۷ روز در چهار صد سال حساب نشود لهذا\nبرای صحت ضروری است که در تاریخ که بر\n۴۰۰ برابر تقسیم نی شود ۳۶۵ روز باشد\nدر یک سال ۵۲ هفته و یک روز هست\nچرا که (۳۶۵ = ۱ + ۷ × ۵۲) لاکن در حساب\nسال ۵۲ هفته میباشد *\nدر ممالک اسلامی با رواج سنه عیسوی\nکم است و حساب در سنه هجری می شود\nسنه هجری ازان روز شروع می شود که جناب\nرسول صلعم از مکه شریف به مدینه منوره هجرت\nفرمودند - در سال اسلامی نیز دوازده ماه\nمیباشد مگر این سال قمری است و هر ماه آن\n۲۹ روز یا ۳۰ روز میباشد - اسمای ماه های\nقمری حسب ذیل اند :-\nمحرم - صفر - ربیع الاول - ربیع الاخر","chars":676,"image":"https://storage.googleapis.com/adl-page-images/adl0290/00181.jpg","first_page":1,"last_page":1089,"title":"ʻIlm-i ḥisābعالم حساب","permalink":"https://afghanpress.org/book/adl0290/181","canvas":"https://afghanpress.org/iiif/adl0290/canvas/181","source":"https://afghanistandl.nyu.edu/books/adl0290/","source_pdf":"https://afghanistandl.nyu.edu/pdf/adl0290_download.pdf","rights":{"image":{"statement":"Public domain. NYU states: \"All works presented on this website are, unless otherwise indicated, in the public domain. The images available on this website may be freely reproduced, distributed and transmitted by anyone for any purpose, commercial or non-commercial.\"","uri":"http://rightsstatements.org/vocab/NoC-US/1.0/","holder":"New York University Libraries","source":"https://afghanistandl.nyu.edu/about.html","delivery":"Images are served from a copy mirrored by this project, not from NYU's servers, under the reproduction terms above.","endorsement":"This is an independent project. It is not affiliated with, endorsed by, or reviewed by New York University."},"text":{"statement":"Machine-generated transcription, dedicated to the public domain under CC0 1.0. No warranty of accuracy: see the provenance block on every page.","uri":"https://creativecommons.org/publicdomain/zero/1.0/","holder":"Steps Ventures"}},"provenance":{"text_produced_by":"gemini-3.1-pro-preview","thinking_level":"low","read_completed":"2026-08-09","per_page_confidence":null,"per_page_confidence_note":"Not recorded during the corpus run. No calibrated per-page score exists, and none is estimated here.","human_reviewed":false,"accuracy_context":"Roughly two thirds of characters agree with a modern printed edition of the same text. Much of the disagreement is editorial, not misreading. Treat the transcription as a finding aid and read the page image before quoting.","primary_source":"The page image. The text is an index into it."}}