There was a very important ceremony known as Ituĩka in which the old guard would hand over the reins of government to the next generation. This was to avoid dictatorship. Kenyatta related how once, in the land of the Agĩkũyũ, there ruled a despotic King called Gĩkũyũ, grandson of the elder daughter (Wanjirũ according to Leakey) of the original Gĩkũyũ of Gĩkũyũ and Mũmbi fame. After he was deposed, it was decided that the government should be democratic, which is how the Ituĩka came to be. This legend of course calls into question exactly when it was that the matrilineal rule set in. The last Ituĩka ceremony, where the riika of Maina handed over power to the Mwangi generation, took place in 1898-9. The next one was supposed to be held in 1925–1928 but was thwarted by the colonial imperialist government and one by one Gĩkũyũ institutions crumbled.