Early monumental construction begins at the siteJan 1, 200 BCELabels: Teotihuacan site, Early constructionWikipedia
Foundations of Teotihuacan’s urban growthJan 1, 100 BCELabels: Basin of, Urban foundationsMet EssayWikipedia
Monument-building boom shapes the city centerJan 1, 100Labels: Monumental architecture, City centerMet EssayWikipedia
Ciudadela and Feathered Serpent complex constructedJan 1, 150Labels: Ciudadela, Feathered SerpentMet TOAHWikipedia
Mass sacrifices dedicated beneath Feathered Serpent PyramidJan 1, 150Labels: Feathered Serpent, Sacrificial burialsMet TOAHWikipedia
Pyramid of the Sun’s first major construction phaseJan 1, 200Labels: Pyramid of, Major constructionMet TOAHWikipedia
Apartment-compound urbanism expands across the cityJan 1, 250Labels: Apartment compounds, UrbanismMet Essay
Teotihuacan-linked takeover at Tikal recordedJan 16, 378Labels: Siyaj K, Tikal takeoverSpearthrow Owl
City reaches peak size and influenceJan 1, 450Labels: Teotihuacan city, Peak populationMet EssayNatGeo
Core ceremonial monuments burned in a major upheavalJan 1, 550Labels: Ceremonial core, Burning eventMet EssayWikipedia
Post-burn contraction reduces population and powerJan 1, 600Labels: Post-burn decline, Demographic contractionMet EssayBritannica
Teotihuacan inscribed as a UNESCO World Heritage SiteJan 1, 1987Labels: UNESCO, World HeritageUNESCO DocsBritannica
Tunnel beneath Feathered Serpent Pyramid discoveredOct 1, 2003Labels: Feathered Serpent, Archaeological tunnelRadiocarbonWikipedia