TIMELINE 2ND PERIOD

By Emilianochevez
  • Possible early human presence in the Americas (Pre-Clovis evidence)
    30,000 BCE

    Possible early human presence in the Americas (Pre-Clovis evidence)

    Archaeological sites like Monte Verde (Chile) and Meadowcroft Rockshelter (USA) suggest humans may have arrived much earlier than the Clovis model proposes.
    These findings challenge the Single Origin Theory, showing earlier settlement.
  • The Beringia Land Bridge and Ice Age Migration Routes
    25,000 BCE

    The Beringia Land Bridge and Ice Age Migration Routes

    During the last Ice Age, a land bridge called Beringia connected Asia and North America.
    Early populations likely crossed it while following animal herds, forming the basis of the Single Origin Theory.
  • Coastal Migration Hypothesis
    19,998 BCE

    Coastal Migration Hypothesis

    Alternative theory proposing that early humans used boats to travel along the Pacific coast, stopping at ice-free coastal refuges.
    This may explain how people reached South America earlier than the Clovis timeline.
  • Clovis First Model and Tool Discovery
    15,000 BCE

    Clovis First Model and Tool Discovery

    The Clovis culture appeared in North America, known for its fluted stone points found near Clovis, New Mexico.
    This theory suggested that a single migration from Asia populated all of the Americas.
  • Ice-Free Corridor Opens
    13,000 BCE

    Ice-Free Corridor Opens

    Between the Laurentide and Cordilleran ice sheets, an ice-free corridor opened, allowing movement from Alaska into central North America — believed to be the route used by Clovis people.
  • Genetic Evidence and Multiple Migration Waves
    1990 BCE

    Genetic Evidence and Multiple Migration Waves

    DNA studies reveal at least three ancestral lineages (First Americans, Na-Dene, Inuit-Yupik).
    This supports a Modified Multiple Origin Theory, where migrations happened in waves from Asia, not just once.

  • Integration of Indigenous Knowledge and Science

    Indigenous oral traditions describe origins within the Americas or from other directions.
    Today, researchers combine scientific data with traditional ecological knowledge to form a more complete picture of early human history.