 Other references to such traditions include that in "Constantine VII Porphrogenitus’ Book of Ceremonies" (from c. 953) which describes the Varangian Guard (a group made up of Norse and later English and Anglo-Danish warriors) dancing in two circles, with some wearing skins or masks, along with chants of “Toúl!” and clashing staves on shields.Sword dancing exists in some parts of Europe.The weapon may be used to act out mock combat during the dance, or may be incorporated as an element of the dance itself, intertwining with other swords.