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110,000 BCE
Last Glaciation
During the last Ice Age, large amounts of water were trapped in the polar ice caps, causing sea levels to drop. This allowed the formation of a land bridge, known as Beringia, which connected Siberia and Alaska. -
30,000 BCE
Formation of Beringia
The Beringia land bridge, which was up to 1,500 km wide in some areas, allowed the passage of animals and humans between Asia and America. The climate in Beringia was relatively milder than in other glacial regions, which facilitated the survival of species and human communities. -
25,000 BCE
First Migrations
It is believed that groups of hunter-gatherers began crossing Beringia in search of food, following large animals like mammoths and bison. These early groups would have followed coastal and overland routes to the south. -
24,000 BCE
Possible Settlement in Beringia
Genetic evidence suggests that some human groups may have been isolated in Beringia for several millennia due to extreme climatic conditions and the closure of other migratory routes. This isolation could have led to the genetic differentiation of future American settlers. -
16,000 BCE
Beginning of the Dispersal through the Americas
As the glaciers began to retreat, humans were able to continue their migration southward, either through an ice-free corridor or along coastal routes. Human groups began dispersing throughout North America and eventually into Central and South America. -
14,000 BCE
Oldest Archaeological Evidence in the Americas
The archaeological site of Monte Verde in Chile, with dates suggesting human occupation about 14,500 years ago, is one of the oldest pieces of evidence of human presence in South America. In North America, tools from the Clovis Culture (around 13,000 years ago) indicate the expansion of human groups across the continent. -
12,000 BCE
Disappearance of the Beringia Land Bridge
At the end of the last glaciation, rising sea levels submerged the Beringia land bridge, disconnecting America from Asia. By that time, humans were already settled throughout the American continent.