# What does the Mamari calendar passage record? · Rongorongo > Three answers have been proposed. The passage is a lunar calendar with a rule for inserting one or two intercalary nights into the 28-night… leads, with… Source: https://mysteriesdept.com/mysteries/rongorongo/questions/QST0D4CCDV63S88/what-does-the-mamari-calendar-passage-record Publisher: Mysteries Department Licence: CC BY 4.0 (credit Mysteries Department and link the page) Updated: 2026-10-26T11:58:38+00:00 --- **0** # What does the Mamari calendar passage record? Asked 26 Oct 2026 by [**apollo** ](https://mysteriesdept.com/u/apollo)·Part of [Does rongorongo record language?](https://mysteriesdept.com/mysteries/rongorongo/questions/QST0D4CCD3R70F2/does-rongorongo-record-language)·3 answers·0·0 following **Most likely: the passage is a lunar calendar with a rule for inserting one or two intercalary nights into the 28-night…** Ahead on the evidence, not yet confirmed. It needs two reviews to be accepted. ## Where it stands Three answers have been proposed. The passage is a lunar calendar with a rule for inserting one or two intercalary nights into the 28-night… leads, with evidence 2 for: partly supported by its tests. Two are still possible. ## Why it matters It is the only passage with an agreed function and so the only foothold for testing readings; its structure constrains what the attached glyphs can mean⁠[[1]](https://mysteriesdept.com/sources/SRC0D4CC2KT4FJD/the-lunar-calendar-of-tablet-mamari). ## Answers 3 [**The passage is a lunar calendar with a rule for inserting one or two intercalary nights into the 28-night…** ](https://mysteriesdept.com/mysteries/rongorongo/answers/ANS0D4CCKEW6QDH/the-passage-is-a-lunar-calendar-with-a-rule-for-inserting) Partly supported by its tests Evidence: 2 for Most likely [**None of these.** ](https://mysteriesdept.com/mysteries/rongorongo/answers/ANS0D4CCME467ER/none-of-these) Not tested enough to call either way Evidence: none yet Still possible [**The passage is a list of night names or a mnemonic for a chant about the moon, not a working calendar.** ](https://mysteriesdept.com/mysteries/rongorongo/answers/ANS0D4CCM6A2CGF/the-passage-is-a-list-of-night-names-or-a-mnemonic-for-a) Not tested enough to call either way Evidence: none yet Still possible ## History 1. 1990[Guy puts forward: the passage is a lunar calendar with a rule for inserting one or two intercalary nights into the 28-night…](https://mysteriesdept.com/sources/SRC0D4CC2KT4FJD/the-lunar-calendar-of-tablet-mamari) 1. 1990[Guy: guy's analysis finds 29 crescents in eight groups marked by heralding sequences, consistent with a lunar…](https://mysteriesdept.com/sources/SRC0D4CC2KT4FJD/the-lunar-calendar-of-tablet-mamari)For: The passage is a lunar calendar with a rule for inserting one or two intercalary nights into the 28-night… 1. 2006[Berthin & Berthin: berthin and Berthin argue the following text shows where the intercalary nights belong.](https://mysteriesdept.com/sources/SRC0D4CC2VM40KW/astronomical-utility-and-poetic-metaphor-in-the-rongorongo)For: The passage is a lunar calendar with a rule for inserting one or two intercalary nights into the 28-night… 1. 26 Oct 2026Asked on this site ## Discussion 0 [Add to the discussion](https://mysteriesdept.com/signin?next=/mysteries/rongorongo/questions/QST0D4CCDV63S88/what-does-the-mamari-calendar-passage-record%23discussion) Help with this question [ **Propose an answer** Something the evidence could support or rule out ] [ **Propose an answer** Something the evidence could support or rule out ](https://mysteriesdept.com/signin?next=/mysteries/rongorongo/questions/QST0D4CCDV63S88/what-does-the-mamari-calendar-passage-record%23add-answer) [ **Add evidence** A result for or against an answer ] [ **Add evidence** A result for or against an answer ](https://mysteriesdept.com/signin?next=/mysteries/rongorongo/questions/QST0D4CCDV63S88/what-does-the-mamari-calendar-passage-record%23add-evidence) [ **Ask a sub-question** A smaller question that would help settle this one ] [ **Ask a sub-question** A smaller question that would help settle this one ](https://mysteriesdept.com/signin?next=/mysteries/rongorongo/questions/QST0D4CCDV63S88/what-does-the-mamari-calendar-passage-record%23add-question) [ **Add a source** A paper, archive record or image ] [ **Add a source** A paper, archive record or image ](https://mysteriesdept.com/signin?next=/mysteries/rongorongo/questions/QST0D4CCDV63S88/what-does-the-mamari-calendar-passage-record%23add-source) Where it fits Rongorongo [**Does rongorongo record language?** ](https://mysteriesdept.com/mysteries/rongorongo/questions/QST0D4CCD3R70F2/does-rongorongo-record-language)Key question · most likely rongorongo is proto-writing or a mnemonic system that cued recited texts without encoding them phonetically [How many distinct glyphs does rongorongo have?](https://mysteriesdept.com/mysteries/rongorongo/questions/QST0D4CCDKC5T7B/how-many-distinct-glyphs-does-rongorongo-have)Most likely · about 50 to 60 basic glyphs, combined into ligatures, account for nearly the whole corpus [Is Fischer's procreation-chant reading of the Santiago Staff correct?](https://mysteriesdept.com/mysteries/rongorongo/questions/QST0D4CCE30644S/is-fischers-procreation-chant-reading-of-the-santiago-staff)Answered · The reading is not valid; glyph 76 is a common sign with no fixed role. **What does the Mamari calendar passage record?** You're here · the passage is a lunar calendar with a rule for inserting one or two intercalary nights into the 28-night… [ Ask a question under this one ]