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Gregorian calendar
KALENDARIUM GREGORIANUM PERPETUUM. ROME: DOMENICO BASA (GIOVANNI GIGLIOTTI), 1582
前往
239
Gregorian calendar
KALENDARIUM GREGORIANUM PERPETUUM. ROME: DOMENICO BASA (GIOVANNI GIGLIOTTI), 1582
前往

拍品詳情

厄文‧托馬許藏書: 運算的歷史

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倫敦

Gregorian calendar
KALENDARIUM GREGORIANUM PERPETUUM. ROME: DOMENICO BASA (GIOVANNI GIGLIOTTI), 1582
8vo (163 x 94mm.), A-D8 E4, printed in red and black, woodcut papal arms on title-page within a cartouche, woodcut initials, nineteenth-century half calf over marbled boards, occasional light damp-staining, front flyleaf excised and title-page partly cut through along gutter
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來源

Antonius Vulpius, inscription at end; bought from Fiammetta Soave, Rome, 2000, bookseller's ticket on inside front cover

出版

Tomash & Williams G83; Edit16 11280; Houzeau & Lancaster 13771 (listing 4 editions); Riccardi i, 654 (4to Basa edition); USTC 820844

相關資料

This is one of many editions printed in 1582 containing the authorised calendar reform of Pope Gregory XIII. The reforms were proposed by Aloysius Lilius (died 1576), and given structure by Christoph Clavius. The two changes were to reduce the number of leap years (by 3 over a 400 year period) and to move the date forward by 10 days to allow for movement since the Council of Nicaea. In 1582, October 4 was immediately followed by October 15.

An oddity of the Gregorian calendar is the omission of the year 0, as this was not considered to be a valid number in the sixteenth century.

Lilius's brother Antonius was granted the privilege for producing these calendars, but he could not cope with the demand so the privilege was revoked in September 1582. From the surviving copies it can be seen that production was farmed out to various printers in Rome and Venice, and in 1583 production moved further abroad.

厄文‧托馬許藏書: 運算的歷史

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倫敦