The United States is under 250 years old, but some of its maximum archaeological sites are older than Vikings sailors, the Roman empire and the pyramids.

Some sites, such as White Sands and Cooper’s Ferry, have skeptics about the precision of their age. However, they give a contribution to our understanding of some of the first Americans.

While the weather warmed about 11,000 years ago, Lake Otero Water fell, revealing the digital footprints of humans who lived among those extinct animals. Some even to stick to a vague, providing a rare review of the habit of the old hunters.

In the 1970s, archaeologist James, Mr. Adovasio, caused controversy when he and his colleagues that the stone team and other artifacts discovered in southwest Pennsylvania belonged to humans who had lived in the region 16,000 years ago.

At that time, the skeptics said that evidence of appointments in the imperfect radiocarbon, AP News reported in 2016. During the years that followed, more places that seem greater than 13,000 years in the United States have been discovered.

The excavation itself is exhibited in the History Center of Heinz, which allows you to see a search in person.

A site that has added intriguing evidence to the prior to the cloud is in the west of Idaho. Humans living there have stone equipment and carbonized bones in a house between 14,000 and 16,000 years, according to the radiocarbon dating. Other researchers approached the dates 11,500 years ago.

They also discovered a mastodon defense with what seemed to reduce the marks through a tool. Other scientists have returned to the site more recently, raising more bones and tools. They used a radiocarbon dating, which established the site as a pre-clavis.

Since it is underwater and personal property, it is not open to visitors.

Located in the center of Oregon-South, the caves seem to be a piece of the puzzle that indicates how humans have the continent thousands of years ago.

Every time other people arrived at the Americas, Siberia crossed Beringia, an area of ​​land and sea between Russia and Canada and Alaska. It is now covered with water, however, once a land bridge that connects them.

Blackwater Draw Museum of the University of New Mexico in the East of New Mexico provides the archaeological site between April and October.

One of the reasons why the dates of the human profession in North America are so debatable is that very few old remains have been found. Among the oldest, there is a Sun river boy up, or Xaasaa Na ‘, in the middle of Alaska.

Archaeologists discovered the bones of the child in 2013. Local teams call it xach’ite’anenh t’eede gay, or dawn girl. Genetic tests revealed that the 11,300 -year -old baby belonged to a Amerindian population in the unknown past, the ancient Beringios.

According to this research, humans would possibly succeed in Alaska about 20,000 years ago.

The artifacts that the equipment left implies that the site has been used and for many years and was an assembly point for trade. People have brought equipment and rocks at 800 miles away. The remains of deer, fish, frogs, caimanes, nuts, grapes and other foods have given archaeologists a review of their nutrition and daily life.

Although it rises, the multicolored walls of the Horseshoe canyon have attracted visitors for a long time. Some of its artifacts return between 9,000 and 7,000 a. C. , but its pictograms are more recent. Some tests date from safe sections of around 2,000 to 900 years.

The 4 galleries involve photographs of life size of anthropomorphic and animals figures in what is known as the Canyon barrier style. Much of this art is in Utah, produced through the archaic culture of the desert.

It is a complicated walk to succeed in pictograms (and the NPS warns that it can be dangerously hot in summer) but it is seeing in person, Feder said. “These are artistic geniuses,” he said about artists.

Located in the Navajo nation, Celly Canyon has magnificent perspectives of the desert and thousands of years of human history. Centuries ago, the ancestral teams and Hopi have planted cultures, created pictograms and built cliff houses.

More than 900 years ago, the other town of Puebloan built the White House, which bears the name of the shadow of their clay. Its upper floors are sitting in a sandstone cliff, with a transparent fall of the windows.

The other people of Navajo, also known as Diné, still live in Canyon de Chelly. Diné Alastair journalist Lee Bitsóí recently wrote about some of the sacred and taboo areas. They come with Tsé Yaa Kin, where archaeologists have discovered human remains.

At that time, he is booming with hunters, farmers and artisans. “It’s an agricultural civilization,” Feder said. “It is a position where raw fabrics arrive thousands kilometers away. ” The researchers also discovered articular wells, potentially discovered in human sacrifices.

The population was also practical, discovering irrigation systems and structure techniques, such as thick walls and shaded spots, to help them in the warm and dry climate.

Feder said that the accommodation is quite accessible, with a short walk along a path to see it, visitors cannot enter the construction itself.

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