Tooath of the Danes

• Tuatha Dé Danann: legendary pre-Gaelic invaders of Ireland described in the pseudo-historical Lebor Gabála Érenn; they defeated the Formoreans in the Second Battle of Moytura; they later became one of the groups associated with the "fairy people" (Sluagh Sidhe or Slua Sí) of Irish folklore → this sentence has several references to Irish mythological texts

• tooth

• Danes: Danish Vikings, many of whom settled in Dublin between the 9th and 12th centuries

• Bluetooth: Harald Bluetooth Gormson, 10th century King of Denmark
  • Third Census of Finnegans Wake
  • Wikipedia