According to the latest students the first human beings appears to have come to America about 20,000 years ago. This was during one of the great Ice Ages that affected the Earth during the Quaternary Era of its history. At that time enormous glaciers joined Asia and North America, forming a natural bridge between the two continents across the Bering Strait. It was over this bridge that waves of Asiatic people of mongoloid stock passed, pushing on farther to the south as time went on.
Little by little these peoples grew accustomed to their new surroundings and their descendants completed the occupation of the entire American continent, reaching its southernmost tip at what is now Tierra del Fuego. The descendants of those ancient peoples still live in that region.
Picture Credit : Google