The Lewis Chessmen (or Uig Chessmen, named after the bay where they were found) are a group of 78 12th-century chess pieces, most of which are carved in walrus ivory. Discovered in 1831 on the Isle of Lewis in the Outer Hebrides, Scotland, they may constitute some of the few complete, surviving medieval chess sets, although it is not clear if a set as originally made can be assembled from the pieces. They are owned and exhibited by the British Museum in London, which has 67 of the original pieces, and the Museum of Scotland in Edinburgh, which has the remaining 11 pieces.
Read more about Lewis Chessmen: Origin, Description, Modern Discovery, Exhibition and Ownership, Controversy