Toltec culture at Tula (c. 900–1175 CE)

1. Early settlement at Tula Chico begins

   Jan 1, 650Labels: Tula Chico, INAH

   • INAH Lugares
   • INAH Acosta

2. Tula reaches metropolitan scale by 800

   Jan 1, 800Labels: Tula, INAH

   • INAH Acosta

3. Tula becomes a major Toltec capital

   Jan 1, 850Labels: Tula, Toltec capital

   • Britannica
   • ASU Elsevier

4. Tula Grande emerges as Toltec civic-ceremonial center

   Jan 1, 900Labels: Tula Grande, astronomical orientation

   • INAH Lugares

5. Toltec polity centered at Tula peaks (Early Postclassic)

   Jan 1, 950Labels: Toltec polity, Tula

   • ASU Elsevier
   • Britannica

6. Temple of Tlahuizcalpantecuhtli (Pyramid B) constructed

   Jan 1, 1000Labels: Pyramid B, Tlahuizcalpantecuhtli

   • INAH Lugares
   • INAH Foto

7. Atlantean warrior columns installed atop Pyramid B

   Jan 1, 1000Labels: Atlantes, Pyramid B

   • INAH Foto
   • INAH Lugares

8. Tula’s apogee across the 10th–12th centuries

   Jan 1, 1000Labels: Tollan-Xicocotitlan, Tula

   • INAH Foto
   • INAH Lugares

9. Severe drought contributes to Toltec decline (1149–1167)

   Jan 1, 1149Labels: drought 1149, dendrochronology

   • Cambridge Core

10. Tollan phase ends and major areas are abandoned

    Jan 1, 1150Labels: Tollan phase, ceramic sequence

    • Cambridge Core
    • INAH Lugares

11. 12th-century northern migrations reshape the Basin of Mexico

    Jan 1, 1150Labels: Chichimec migrations, Basin of

    • INAH Xolotl

12. Ceremonial center burned and monumental core collapses

    Jan 1, 1175Labels: ceremonial core, destruction

    • Britannica
    • World History