Early villages expand in the northern SouthwestJan 1, 900Labels: Ancestral Pueblo, Chaco CanyonUCAR HAOAntiquity
Construction begins at Pueblo BonitoJan 1, 900Labels: Pueblo Bonito, great houseAntiquityNPS ChacoPueblo Bonito
Great house network grows across the regionJan 1, 900Labels: Bonito Phase, great-house networkBonito PhaseUCAR HAO
Macaws arrive as early prestige giftsJan 1, 925Labels: scarlet macaw, long-distance exchangePNAS PMCPenn State
Pueblo Alto built with major storage and production areasJan 1, 1020Labels: Pueblo Alto, storage facilitiesChaco ArchivePueblo Alto
Chaco roads link outliers to gathering centersJan 1, 1025Labels: Chaco roads, engineersNPS RoadsUCAR HAO
Ritual feasting leaves huge pottery discard at Pueblo AltoJan 1, 1040Labels: Pueblo Alto, pottery refuseChaco ArchiveToll summary
Cacao drinking practices connect Chaco to distant networksJan 1, 1050Labels: Pueblo Bonito, cacaoNPS CacaoUNM News
Room 28 jar cache is burned in a termination ritualJan 1, 1100Labels: Room 28, termination ritualUNM NewsSmithsonian
Long-distance turquoise exchange spans the SouthwestJan 1, 1100Labels: turquoise exchange, sourcing studiesSciAmNPS Chaco
Outlier great houses persist, such as Salmon RuinsJan 1, 1120Labels: Salmon Ruins, outlier greatSalmon RuinsUCAR HAO
Megadrought stresses farming and weakens Chaco’s central roleJan 1, 1130Labels: megadrought, Chaco CanyonCrow CanyonJAA 1995UCAR HAO
Great houses transition from center places to local communitiesJan 1, 1150Labels: great houses, local communitiesJAA 1995UCAR HAO
Regional migrations culminate in broad reorganization by 1300Jan 1, 1300Labels: regional migrations, Four CornersJAA 1995UCAR HAO