Cascajal Block and claims of early Olmec writing (c. 1200–900 BCE and modern discovery timeline)

1. San Lorenzo phase context for proposed dating

   Jan 1, 1200Labels: San Lorenzo, Olmec heartland

   • Science PubMed
   • SciAm
   • Cambridge

2. Later Mesoamerican scripts underscore comparative stakes

   Jan 1, 1986Labels: Isthmian script, La Mojarra

   • La Mojarra
   • Olmec glyphs

3. Cascajal Block discovered in Veracruz lowlands

   Jan 1, 1999Labels: Cascajal Block, Veracruz lowlands

   • Cambridge
   • Wikipedia
   • SciAm

4. INAH archaeologists examine and register the block

   Jan 1, 2000Labels: INAH, Mexican archaeologists

   • Wikipedia
   • Science PubMed

5. San Andrés artifacts fuel earlier-writing debate

   Jan 1, 2002Labels: San Andr, greenstone plaque

   • San Andr s
   • WorldArch

6. Major media coverage popularizes early-writing claim

   Sep 14, 2006Labels: media coverage, public discourse

   • Guardian
   • SciAm
   • KPBS NPR

7. Science publishes “Oldest writing in the New World”

   Sep 15, 2006Labels: Science article, Mar a

   • Science PubMed
   • KPBS NPR
   • SciAm

8. Provenience concerns become central to skepticism

   Sep 16, 2006Labels: provenience concerns, disturbed context

   • Ars
   • Wikipedia
   • SciAm

9. Science publishes formal critique by Bruhns and Kelker

   Mar 9, 2007Labels: Bruhns and, Science critique

   • Science PubMed
   • Science PubMed

10. Debate frames criteria for “writing” vs. iconography

    Dec 1, 2007Labels: writing criteria, iconography debate

    • SciAm
    • Ars
    • Wikipedia

11. Cambridge article applies imaging and materials analyses

    Nov 27, 2019Labels: Cambridge study, materials analysis

    • Cambridge

12. Ancient Mesoamerica issue publication consolidates findings

    Jan 1, 2020Labels: Ancient Mesoamerica, peer review

    • Cambridge