Before the missions arrived, Rwandans addressed Imana, a single creator whose name still saturates the language: blessings, personal names and the proverb that God spends the day elsewhere but comes home to sleep in Rwanda. Alongside Imana stood the kubandwa cult of Ryangombe, a spirit lord whose initiates crossed lines of clan and class in a society otherwise tightly ranked. The White Fathers opened their first station in 1900, and within two generations Rwanda had become one of the most Catholic countries in Africa, its seminaries training much of the elite and its mission schools shaping the ethnic politics that followed.
The 1994 genocide against the Tutsi implicated that church history in the darkest way. Some clergy sheltered the hunted at the cost of their own lives, while others were later convicted for their part in massacres, including killings inside church compounds where people had gathered for sanctuary. The years since have redrawn the religious map.
Pentecostal and Adventist congregations have grown quickly, Islam expanded from a small trading minority partly on the strength of mosques' reputation for protecting people in 1994, and the state, wary of unregulated pulpits, closed thousands of churches under a 2018 law that demands sound buildings and trained pastors. Rwanda remains intensely religious, but on terms the state watches closely.