Section 1
The First Americans: Migration from Asia
Key Idea
Thousands of years ago, during the Ice Age, people from Asia walked into North America. They crossed a land bridge called Beringia that connected Siberia and Alaska. These early people were hunters following herds of large animals.
As the climate warmed, these groups spread across North and South America. They adapted to vastly different environments, from icy tundras to dense forests. This adaptation led to the development of thousands of diverse cultures, each with unique traditions, languages, and ways of life.