 In 1898, the diocese was split into two, with the new diocese of Mombasa governing Kenya and northern Tanzania (the other diocese later became the Church of Uganda); northern Tanzania was separated from the diocese in 1927.Mass conversions of Africans began as early as 1910.In 1955, the diocese's first African bishops, Festo Olang' and Obadiah Kariuki, were consecrated by the Archbishop of Canterbury, Geoffrey Fisher, in Uganda.