And yet, they did not take the opportunity to USE IT.
The Vikings were fierce and adventurous, but they sure were very much like today’s Dimocrats...absolutely no FORESIGHT.
When these discoveries are reported I always think, What are those reporting expect??? They want us to be amazed and awed.
I think they lacked the ability to FIND it again. Their navigation tools were relatively rudimentary, and they rarely left sight of a shoreline. It seems likely to me that whomever these Viking dudes were, they were simply blown off course by a storm. Similar things happened to Phoenician sailors a thousand years earlier. They did not have the navigation capabilities to return to where they landed.
http://www.american-firearms.com/history/carthaginians/The%20Carthaginians%20discovered%20America.html