Isthmian script
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The Isthmian script is an early set of symbols found in inscriptions around the Isthmus of Tehuantepec, dating to c. 500 BCE – 500 CE, though with dates subject to disagreement. It is also called the
Detail showing three columns of glyphs from La Mojarra Stela 1. The two right columns are Isthmian glyphs. The left column gives a Mesoamerican Long Count calendar date of 8.5.16.9.7, or 156 CE.
Epiolmec syllabary in the International Phonetic Alphabet according to Kaufman and Justeson 1996
Maya script
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Maya script, also known as Maya glyphs, is historically the native writing system of the Maya civilization of Mesoamerica and is the only Mesoamerican writing system that has been substantially deciph
Isthmian script
…that represents a spoken language, or is a system of proto-writing. According to a disputed partial decipherment, it is structurally similar to the Maya script (an undisputed writing script), and like Maya uses one set of characters to represent morphemes, and a second set to represent syllables. The four most…
Maya glyphs were highly complex and often carved into stone.
Yucatec Maya writing in the Dresden Codex, c. 11–12th century, Chichen Itza
An inscription in Maya glyphs from the site of Naranjo, relating to the reign of king Itzamnaaj Kʼawil, 784–810
Diego de Landa's Maya alphabet was an early attempt at decipherment.