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-THE [PROLEPTIC GREGORIAN CALENDAR]-

October 8, 2013 jogabot 0

-the proleptic gregorian calendar is produced by extending the ‘gregorian calendar’ backward to dates preceding its ‘official introduction’ in [1582]- . (in countries that adopted the […]

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“THE ALMAGEST”

October 8, 2013 jogabot 0

. “WRONG!” . (/ˈælməˌdʒɛst/) . -the almagest is a greek-language mathematical and astronomical treatise (from the 100s) on the apparent motions of the stars and planetary paths, written by ‘claudius ptolemy’ (c. AD 100 – c. 170)- . (one […]

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-THE [PRO-LEPTIC] JULIAN CALENDAR-

October 8, 2013 jogabot 0

-“OLD STYLE”- . -the proleptic julian calendar is produced by extending the ‘julian calendar’ backwards to dates preceding ‘AD 4’ when the ‘quadrennial leap year’ stabilized*- […]

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*claudius ptolemy*

October 8, 2013 jogabot 0

. “ALMAGEST” (the “greatest”?)(“hold your horses”)(“i’m afraid you were mistaken…”) . /ˈtɒləmi/ Greek: Κλαύδιος Πτολεμαῖος, Klaúdios Ptolemaîos [kláwdios ptolɛmɛ́ːos] Latin: Claudius Ptolemaeus;  c. AD 100 – c. 170) . *”claudius ptolemy” was […]

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-ISO 8601-

October 8, 2013 jogabot 0

*OFFICIAL LINK* . *data elements* *interchange formats* *information interchange* *representation of dates / ‘times’* . -[‘ISO 8601’ ] is an ‘international standard’ covering the exchange of […]

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-[ASTRONOMICAL YEAR] NUMBERING-

October 8, 2013 jogabot 0

-as of [28 JULY 2025]- . -‘astronomical year numbering’ is based on ‘AD/CE year numbering’, but follows ‘normal decimal integer numbering’ more ‘strictly’- . (thus, […]