# Is the Cascajal script ancestral to Isthmian writing? · Cascajal block and Isthmian writing > Three answers have been proposed. None is ahead on the evidence yet. Three are still possible. Source: https://mysteriesdept.com/mysteries/cascajal-block/questions/QST0CYBBYM82QGT/is-the-cascajal-script-ancestral-to-isthmian-writing Publisher: Mysteries Department Licence: CC BY 4.0 (credit Mysteries Department and link the page) Updated: 2026-10-26T11:57:01+00:00 --- **0** # Is the Cascajal script ancestral to Isthmian writing? Asked 26 Oct 2026 by [**apollo** ](https://mysteriesdept.com/u/apollo)·Part of [Has Isthmian (Epi-Olmec) writing been deciphered?](https://mysteriesdept.com/mysteries/cascajal-block/questions/QST0CYBBYCE2Y3M/has-isthmian-epi-olmec-writing-been-deciphered)·3 answers·0·0 following **Three answers, none ahead** None is ahead yet. See what would settle it. ## Where it stands Three answers have been proposed. None is ahead on the evidence yet. Three are still possible. ## Why it matters A link would carry Isthmian values back to the block and give the block a context; the gap is about a thousand years with almost no texts between⁠[[1]](https://mysteriesdept.com/sources/SRC0CYBBKMP6M8H/the-cascajal-block-iconographic-motivations-part-3-note-36)⁠[[2]](https://mysteriesdept.com/sources/SRC0CYBBNK62YR9/isthmian-script). ## Answers 3 [**Cascajal is an early stage of the Olmec-derived tradition that led to Isthmian writing.** ](https://mysteriesdept.com/mysteries/cascajal-block/answers/ANS0CYBC75P7DQJ/cascajal-is-an-early-stage-of-the-olmec-derived-tradition) Not tested enough to call either way Evidence: 1 for Still possible [**None of these.** ](https://mysteriesdept.com/mysteries/cascajal-block/answers/ANS0CYBC7X446QN/none-of-these) Not tested enough to call either way Evidence: none yet Still possible [**The Cascajal system has no demonstrable descendant.** ](https://mysteriesdept.com/mysteries/cascajal-block/answers/ANS0CYBC7NA3ZD8/the-cascajal-system-has-no-demonstrable-descendant) Not tested enough to call either way Evidence: none yet Still possible ## History 1. 2024[Mora-Marín puts forward: cascajal is an early stage of the Olmec-derived tradition that led to Isthmian writing.](https://mysteriesdept.com/sources/SRC0CYBBKMP6M8H/the-cascajal-block-iconographic-motivations-part-3-note-36) 1. 2024[Mora-Marín: mora-Marín finds the Cascajal signary consistent with later Epi-Olmec writing.](https://mysteriesdept.com/sources/SRC0CYBBKMP6M8H/the-cascajal-block-iconographic-motivations-part-3-note-36)For: Cascajal is an early stage of the Olmec-derived tradition that led to Isthmian writing. 1. 26 Oct 2026Asked on this site ## Discussion 0 [Add to the discussion](https://mysteriesdept.com/signin?next=/mysteries/cascajal-block/questions/QST0CYBBYM82QGT/is-the-cascajal-script-ancestral-to-isthmian-writing%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/cascajal-block/questions/QST0CYBBYM82QGT/is-the-cascajal-script-ancestral-to-isthmian-writing%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/cascajal-block/questions/QST0CYBBYM82QGT/is-the-cascajal-script-ancestral-to-isthmian-writing%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/cascajal-block/questions/QST0CYBBYM82QGT/is-the-cascajal-script-ancestral-to-isthmian-writing%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/cascajal-block/questions/QST0CYBBYM82QGT/is-the-cascajal-script-ancestral-to-isthmian-writing%23add-source) Where it fits Cascajal block and Isthmian writing [**Has Isthmian (Epi-Olmec) writing been deciphered?** ](https://mysteriesdept.com/mysteries/cascajal-block/questions/QST0CYBBYCE2Y3M/has-isthmian-epi-olmec-writing-been-deciphered)Key question · most likely the decipherment is unproven or wrong; the corpus is too small to confirm it **Is the Cascajal script ancestral to Isthmian writing?** You're here · 3 answers, inconclusive [ Ask a question under this one ]