oba ewuare the great ruled benin, he was a great warrior and travele. when he sent iken of uselu to wage war against the people of owo, he made his son kuoboyuwa to deputize for himsince iken had no male child. kuoboyuwa was made edaiken of uselu. his brother was made enogie of iyowa of akure/ifon road.
as time passed by, enemies instigated hatred between the two brothers. the hatred degenerated to the extent that they have to poison themselves. the two died the same day. in annoyance, ewuare enacted adecree that no man should have sex with their wives for three years.
this draconian law led to the depopulation of the city. when enweare saw the trend of depopulation, he then embarked on tide of emigration. the first set of moat was dug during oguola's reign.