San Lorenzo Tenochtitlán civic center (c. 1400–900 BCE)

1. Ojochi phase occupation begins at San Lorenzo

   Jan 1, 1750 BCELabels: Ojochi phase, San Lorenzo

   • San Lorenzo Wiki
   • ScienceDirect

2. Early ritual activity at nearby El Manatí

   Jan 1, 1600 BCELabels: El Manat, ritual site

   • El Manat Wiki
   • San Lorenzo Wiki

3. Bajío phase and intensified landscape modification

   Jan 1, 1550 BCELabels: Baj o, San Lorenzo

   • ScienceDirect
   • San Lorenzo Wiki

4. Chicharras phase introduces distinctive Olmec materials

   Jan 1, 1450 BCELabels: Chicharras phase, Olmec material

   • San Lorenzo Wiki
   • INAH

5. San Lorenzo phase begins the civic center’s peak

   Jan 1, 1400 BCELabels: San Lorenzo, civic center

   • San Lorenzo Wiki
   • Britannica

6. Massive plateau construction reshapes the civic core

   Jan 1, 1350 BCELabels: plateau construction, San Lorenzo

   • San Lorenzo Wiki
   • INAH

7. Monumental basalt sculpture program expands

   Jan 1, 1200 BCELabels: basalt monuments, Tuxtla Mountains

   • Britannica
   • INAH

8. Colossal heads installed as dynastic display

   Jan 1, 1100 BCELabels: colossal heads, dynastic display

   • Heads Wiki
   • San Lorenzo Wiki

9. Elaborate stone drainage network constructed

   Jan 1, 1050 BCELabels: stone drainage, San Lorenzo

   • San Lorenzo Wiki
   • Britannica

10. Nacaste phase decline begins at the center

    Jan 1, 1000 BCELabels: Nacaste phase, decline

    • San Lorenzo Wiki
    • INAH

11. Destruction and deliberate mutilation of monuments

    Jan 1, 900 BCELabels: monument destruction, San Lorenzo

    • Britannica
    • San Lorenzo Wiki

12. 1945 rediscovery: Stirling excavates first San Lorenzo head

    Jan 1, 1945Labels: Matthew Stirling, Colossal Head

    • Heads Wiki
    • Nature

13. 1946 field season reveals additional colossal heads

    Sep 7, 1946Labels: 1946 field, Smithsonian

    • Nature
    • Britannica