Did our medieval vessels have the Viking sunstone for navigation….?

  I have just watched an episode (series 1, episode 5) of the Mysteries of the Missing documentary series. Half of this one dealt with the mysterious sunstones of the Vikings, by which they are believed to have navigated the Atlantic. They also used wooden sundials (hand-held) that worked when the sun was out, but… Continue reading Did our medieval vessels have the Viking sunstone for navigation….?