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Concept
Olmec hieroglyphs
Summary
Olmec hieroglyphs (alternatively Olmec glyphs, Olmec writing, or Olmec script) designate a possible system of writing or proto-writing developed within the Olmec culture. The Olmecs were the earliest known major Mesoamerican civilization, flourishing during the formative period (1500 BCE to 400 BCE) in the tropical lowlands of the modern-day Mexican states of Veracruz and Tabasco. The subsequent Epi-Olmec culture (300 BCE to 250 CE), was a successor culture to the Olmec and featured a full-fledged writing system, the Isthmian (or Epi-Olmec) script.
The existence of a writing system in Middle and Late Olmec periods has been a matter of long-standing debate. Direct evidence includes the appearance of individual (potential) glyphs as well as the singleton Cascajal Block that bears a potential text. Indirect evidence includes similarities in calendar and writing systems between subsequent Mesoamerican cultures, for which the Olmecs are sometimes considered a mother culture.
Cascajal Block
In September 2006, a report published in Science magazine announced the discovery of the Cascajal block, a writing-tablet-sized block of serpentine with 62 characters unlike any yet seen in Mesoamerica. This block was discovered by locals in the Olmec heartland and was dated by the archaeologists to approximately 900 BCE based on other debris. If the authenticity and date can be verified, this will prove to be the earliest writing yet found in Mesoamerica. The symbols on the Cascajal block are unlike those of any other writing system in Mesoamerica, such as in Mayan languages or Isthmian, another extinct Mesoamerican script. The Cascajal block is also unusual because the symbols apparently run in horizontal rows and "there is no strong evidence of overall organization. The sequences appear to be conceived as independent units of information". The 28 unique Cascajal block characters bear no obvious resemblance to later glyphs. If indeed, it has been a script, "[the Cascajal block script] apparently left no descendants, with no certain link to Isthmian or other Formative [period] writing.
Official source
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