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Paper, 'A demonstration of the rule, for finding the year of the Julian period' by John Collins

Reference number: CLP/16/8

Date: 12 December 1667

Description

Collins presents a method for finding the year of the Julian period which involves multiplying the solar cycle by 4845, the lunar cycle by 4200 and the indiction by 6916 before dividing the sum of the products by 7980, 'which is the Julian period, the remainder of the division without having regard to the quotient, shall be the yeare inquired after.'

Subject: Calendar

Reference number
CLP/16/8
Earliest possible date
12 December 1667
Physical description
Ink on paper
Page extent
14 pages
Format
Manuscript

Creator name

John Collins

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Citation

John Collins, Paper, 'A demonstration of the rule, for finding the year of the Julian period' by John Collins, 12 December 1667, CLP/16/8, The Royal Society Archives, London, https://makingscience.royalsociety.org/items/clp_16_8/paper-a-demonstration-of-the-rule-for-finding-the-year-of-the-julian-period-by-john-collins, accessed on 21 April 2024

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  • Classified Papers

    Dates: 1592-1741

    The 'Classified Papers' of the Royal Society are papers from British and international natural philosophers and scholars categorised according to subject areas.

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