The Vikings spent at least a couple of seasons in Newfoundland and possibly further south. The remains of a typical Norse settlement have been excavated in Newfoundland at L'Anse aux Meadows. The site had typical Norse ember pits and longhouses, as well as obvious Norse tools such as a soapstone spindle whorl and bronze pins. They didn't get along with the natives, however; and soon left. They called the natives skraelings in the sagas about Vinland. The sagas tell of Lief Erikson's brother Thorvald being killed by a skraeling arrow in Vinland.Originally Posted by Tiberius
On the subject of the Chinese exploration, Chinese admiral Zheng He is believed by some to have reached the west coast of the Americas; but there is no supportable evidence of such. He certainly sailed much of the Southwest Pacific and Indian Oceans and went as far as Africa in exploratory missions for the Chinese emperor. It's the sailing east to the Americas that is controversial.
The Phoenicians making it to America is more controversial still. Any storied Phoenician exploration of the Americas is pure supposition. They did manage to visit the British Isles, certainly; and possibly went down the west coast of Africa. In their ships, which were coastal traders, making an Atlantic crossing would be improbable at best.
Bookmarks