The new research has shown that first human beings came to live in Northern America almost ten thousand years earlier than we have learned from our history books.
Scientists have found bones in one of the Canadian caves, which saved the marks of the tools made from stone.
Bones belonged to the animal, and had the marks of human present. The tools made from stone were usually used by ancient people who had to take skin from animals.
Originally we believed that the first people on the territory of modern Canada has appeared 14 000 years ago, but know archeologists suppose that they made 10 000 years mistake.
The main discovery was made by the representatives of Anthropology department of Montreal University in Canada.
Researchers have found animal bones with the stone tools marks on them. Perhaps, the first humans came there earlier crossing the Russian Bering straight to find Alaska.
The periodization was supported by the radiocarbon dating analysis. Now we can say that the first humans lived there in Pleistocene, one of the ice age periods, the last one.
The bones were found in the cave named Bluefish at the north of Yukon, Canada, close to the Alaskan border.
This place was first explored by Jacques Cinq-Mars, an archeologist, in 1978 year. To find the date of the ancient settlement, scientists used radiocarbon method. With received information he decided that the first people came to North America thirty thousand years ago.