WTF Is It Now?!?

Did the Scandinavians beat Columbus to America twice?
A (200-pound) rune stone, found by a Kensington, Minnesota farmer on his property in 1898, is a block of stone featuring engravings common during the Viking era. It has been sent to Sweden's Museum of National Antiquities to establish whether it really dates from 1362, as its markings claim, or is just a hoax.

If confirmed as an authentic relic, the so-called Kensington stone would prove that another wave of explorers, more than 300 years after the Vikings, made it to the American continent before Columbus did in 1492.