While many examples exist, the classic example was reported by Goody and Watt (1968). Written records prepared by the British in Ghana in the early 1900s show that Ndewura Jakpa , the seventeenth century founder of the state of Gonja , had seven sons, each of whom ruled a territorial division within the state. Six decades later two of the divisions had disappeared for various reasons. The myths of the Gonja had been revised to recount that Jakpa had five sons, and that five divisions were created.  Since they had no practical, present purpose, the other two sons and divisions had evaporated.