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Solutrean Hypothesis Is a controversial theory suggeting Europeans from the Solutrean culture may have crossed the Atlantic about 20.000 - 25.000 years ago based or similarities in stone tools. -
About 15,000 years ago: Buttermilk Creek Complex in Texas. Artifacts suggest human presence before the Clovis. -
Coastal Migration Theory: Proposes an earlier migration along the Pacific coast by boat 16,000 - 18.000 years ago, supported by sites like Monte Verde in Chile. -
Beringia Theory: Suggests migration From siberia to Alaska via a land bridge around 15.000 - 20,000 years ago. Supported by genetic links and archaeological euidence like the cloves culture. -
The Ice Age refers to a period in Earth's history characterized by significant global cooling, during which large ice sheets and glaciers covered substantial portions of the planet's surface. -
About 10,000- 4000 years ago
Includes the use of primitive stone tools. Hunter-gatherers developed basic survival skills.
Transition to a more sedentary lifestyle and the development of more advanced technologies.
Development of agriculture, domestication of animals, and establishment of permanent settlements. -
Pelynesen Contact Theory: Arques that Polynesians may have reached South America around 1000-1,200 years ago, supported by genetic evidence and the presence of sweet potatoes in Polynesia. -
15th - 16th Century: Fourth migration (European contacts). European exploration voyages, such as those of Christopher Columbus, initiate contact with the indigenous peoples of the Americas. -
Lucy was found in Africa (1974), was a female about 20 years old. Lucy was alive 3 million years ago. She was about 4 feet tall and weighed about 50 pounds. -
20th - 21st Century: Advances in genetic and archaeological studies. Modern research reveals details about early human migrations and the diversity of the first inhabitants of the Americas.