IF YOU ANSWER THIS I WILL MARK YOU AS BRAINLEST ANSWER MY QUESTION IS WHO DISCOVER THE UNITED STATES OF AMERICA?

American Vikings

Viking ships found America one thousand years ago.

Sure, Columbus made America known to the Europeans who ultimately conquered it, but he didn’t discover it by any means.

Leif Erikson, the son of Erik the Red, was a Norse explorer from Iceland — a Viking. Erik the Red founded the first Norse settlement in Greenland. Discovery and expansion ran through their blood, as Leif went on to travel much farther: to America.

Leif and his crew traveled from Greenland to Norway in 999 AD, where he converted to Christianity. Not long after that, he sailed the Atlantic. According to the Sagas of Icelanders, he established a Norse settlement at Vinland, which is (debatably) in Newfoundland in modern-day Canada. For many years, this was thought to be only a mythological story — more myth than reality — but archaeological evidence has shown, beyond a doubt, that Vikings reached Canada.

The first Viking archaeological site in the New World is L’Anse aux Meadows, a thousand-year-old way station discovered in 1960 on the northern tip of Newfoundland. The feature was a clear indication that Vikings had visited North America centuries before Columbus — at least partially, the myth was proven to be true. Archaeologists actually used clues from the sagas to guide their research.

Explanation:

answer:   migrations were important in the neolithic period. "two major migrations passing through southeastern europe were confirmed by the means of archaeo-genetic studies."

the first migration was the early neolithic period -- 6,000 before common era (bce) -- when the first farmers, from anatolia -- asia minor -- spread through europe. the second migration occurred during the early bronze age (3,000-2,500 bce) when the so-called "steppe population," from the eurasian steppe, replaced much of northern europe's previous population.

the first farmers of northern and western europe passed through southeastern europe with limited hunter-gatherer genetic admixture, which occurs when two or more previously isolated populations begin interbreeding. however, some groups that remained mixed extensively -- without the male-biased, hunter-gatherer admixture that prevailed later in the north and west, according to latest discoveries. southeastern europe continued to be a nexus between east and west, with intermittent genetic contact with the steppe people up to 2,000 years before the migrations that replaced much of northern europe's population.

"in some places, hunter-gatherers and incoming farmers seem to have mixed very quickly," says iain mathieson, a geneticist at the university of pennsylvania, who was first author of the paper. "but, mostly, the two groups remained isolated, at least for the first few hundred years. these hunter-gatherers had been living there for thousands of years, and it must have been quite a shock to have these new people show up -- with a completely different lifestyle and appearance."