The description of the game states that it was invented at the court of King Æthelstan of England (924–939) by two learned men: an anonymous Frank and Israel the Grammarian, one of the leading European scholars of his time.
Beskrivelsen af spillet siger, at det blev opfundet i kong Æthelstans hof i England (924–939) af to lærde mænd; en anonym Frank og Israel Grammaticus, der var en af de ledende lærde i Europa på denne tid.