The Kensington Runestone
The Kensington Runestone is a 202-pound slab of greywacke covered in runes on its face and side which, if genuine, would suggest that Scandinavian explorers reached the middle of North America in the 14th century. It was found in 1898 in the largely rural township of Solem, Douglas County, Minnesota, and named after the nearest settlement, Kensington.