CHRONOLOGY

ca. 3500 BP

  • – Southwestern cultures cultivate corn.

ca. 2500 BP

  • – Woodland cultures build burial mounds.

ca. 2500–2100 BP

  • – Adena culture develops in Ohio.

ca. 2100 BP–AD 400

  • – Hopewell culture emerges in Ohio and Mississippi valleys.

ca. AD 200–900

  • – Mogollon culture develops in New Mexico.

ca. AD 500–1400

  • – Hohokam culture develops in Arizona.

ca. AD 800–1500

  • – Mississippian culture flourishes in Southeast.

ca. AD 1000–1200

  • – Anasazi peoples build cliff dwellings and pueblos.