Avalon, sometimes written Avallon or Avilion, is a legendary island featured in the Arthurian legend. It first appears in Geoffrey of Monmouth's 1136 Historia Regum Britanniae as the place where King Arthur's sword Excalibur was forged and later where Arthur was taken to recover from being gravely wounded at the Battle of Camlann. Since then the island has become a symbol of Arthurian mythology, similar to Arthur's castle Camelot.
