Mathew Njoroge Kabetũs list reads, "Tene", "Kĩyĩ", "Aagu", "Ciĩra", "Mathathi", "Ndemi", "Iregi", "Maina" ("Ngotho"), "Mwangi". Gakaara wa Wanjaũs list reads "Tene", "Nema Thĩ", "Kariraũ", "Aagu", "Tiru", "Cuma", "Ciira", "Ndemi", "Mathathi", "Iregi", "Maina", "Mwangi", "Irũngũ", "Mwangi wa Mandũti". The last two generations came after 1900. One of the earliest recorded lists by McGregor reads (list taken from a history of unchanged) "Manjiri", "Mandũti", "Chiera", "Masai", "Mathathi", "Ndemi", "Iregi", "Maina", "Mwangi", "Mũirũngũ". According to Hobley (a historian) each initiation generation, "riika", extended over two years. The ruling generation at the arrival of the Europeans was called "Maina". It is said that "Maina" handed over to "Mwangi" in 1898. Hobley asserts that the following sets were grouped under "Maina" – "Kĩnũthia", "Karanja", "Njũgũna", "Kĩnyanjui", "Gathuru" and "Ng’ang’a". Professor Mũriũki however puts these sets much earlier, namely "Karanja" and "Kĩnũthia" belong to the "Ciira" ruling generation which ruled from the year 1722 to 1756, give or take 25 years, according to "Mũriũki". "Njũgũna", "Kĩnyanjui", "Ng’ang’a" belong to the "Mathathi" ruling generation that ruled from 1757 to 1791, give or take 20 years, according to Mũriũki.