Αποτελέσματα Αναζήτησης
300 BC: Mogollon people, possibly descended from the Cochise tradition, appear in southeast Arizona and southwest New Mexico. 200 BC–500 AD: The Hopewell tradition begins flourishing in much of the East, with copper mining centered in the Great Lakes region. [1]
Geneticists have variously estimated that peoples of Asia and the Americas were part of the same population from 42,000 to 21,000 years ago. [15] New studies shed light on the founding population of indigenous Americans, suggesting that their ancestry traced to both east Asian and western Eurasians who migrated to North America directly from ...
13 Νοε 2013 · European settlers transformed America's Northeastern forests. From historic records and fossils, researchers know the landscape and plants are radically different today than they were 400...
4 Ιουλ 2024 · Here is a very brief timeline for known human settlement and history in North America from 1500 BC to 2000 AD: Pre-Columbian Era (Before 1492) 1500 BC: Rise of the Olmec civilization in present-day Mexico, often considered the “mother culture” of Mesoamerica.
The geological history of North America comprises the history of geological occurrences and emergence of life in North America during the interval of time spanning from the formation of the Earth through to the emergence of humanity and the start of prehistory.
22 Ιουλ 2020 · A study of radiocarbon dating of early archaeological sites by Becerra-Valdivia and Higham reveals that interior regions of Alaska, Yukon in Canada and the continental United States were already...
28 Οκτ 2019 · One of the earliest reptiles yet identified, Hylonomus, appeared about 315 million years ago, and the giant (almost 10 feet long) Ophiacodon only a few million years later. By the end of the Carboniferous, reptiles had migrated well toward the interior of Pangea.
