2023年6月21日 · In 1590, the Spanish missionary Fray Jose de Acosta produced the first written record to suggest a land bridge connecting Asia to North America. The question of how people migrated to the New World was a topic widely debated among the thinkers and theorists of his time. Acosta rejected many of the theories proposed by his contemporaries.

2023年7月14日 · According to most archeologists and geneticists, the best theory for how the first humans migrated to the Americas is the same one that many likely learned in grade school: they crossed the...

2014年3月4日 · Genetic evidence supports a theory that ancestors of Native Americans lived for 15,000 years on the Bering Land Bridge between Asia and North America until the last ice age ended

2017年2月22日 · As of 2008, genetic findings suggest that a single population of modern humans migrated from southern Siberia toward the land mass known as the Bering Land Bridge as early as 30,000 years ago, and crossed over to the Americas by 16,500 years ago.

For Mackie, the archaeological riches of the British Columbian coast reveal a key flaw in the original Bering Land Bridge theory: its bias toward an inland, rather than a marine, route.

Scientists and explorers often wondered how people populated North America, read all about the history of the theory. The Bering Land Bridge theory is just one migration pattern of many. Learn more about the early indigenous people of the region.

2023年1月6日 · Based on records of estimated global temperature and sea level, scientists thought the Bering Land Bridge emerged around 70,000 years ago, long before the Last Glacial Maximum. But the new data show that sea levels became low enough for the land bridge to appear only 35,700 years ago.

2024年10月1日 · Scientists once theorized that the ancestors of today's Native Americans reached North America by walking across this land bridge and made their way southward by following passages in the ice as they searched for food. New evidence shows that some may have arrived by boat, following ancient coastlines.

2014年2月27日 · The theory that humans inhabited the Bering land bridge for some 10,000 years "helps explain how a Native American genome (genetic blueprint) became separate from...

This new evidence dispels the Clovis-first model, named for evidence of human occupation in Clovis, New Mexico. This model suggests that the first people to reach North America traveled across the Bering Land Bridge and then into North America along an ice-free cross-continental corridor around 14,000 to 8,000 BCE (map below).