New Study on Peopling of Americas Confirms Some Theories, Unsettles Others The New World was populated in at least two migrations, according to a paper presented by C. Loring Brace to the National Academy of Sciences. The settlers in the first wave, who walked across the Bering Land Bridge 15,000 years ago, were the forebears of present-day inhabitants south of the U.S.-Canadian border. The ancestors of linguistically distinct peoples including the Inuit, Aleut, and Na-Dene speakers made the watery crossing from Asia about 5,000 years ago.(The people are todays American Indian/Native Americans) The new study by Dr. Brace, professor of...