Tutsi (largest) and the Twa (smallest). Small numbers of Hema, Kiga and Furiiru people also live near the Tutsi in Rwanda. The Northern Tutsi who reside in Rwanda are called Ruguru (Banyaruguru), while southern Tutsi that live in Burundi are known as Hima, the Tutsis who resides in Masisi which is in Kivu and they are known as Banyamasisi and the Tutsi that inhabit the Kivu plateau in the Congo go by Banyamulenge. The definitions of "Hutu" and "Tutsi" people may have changed through time and location. Social structures were not stable throughout Rwanda, even during colonial times under the Belgian
Islam in Rwanda the Rwandan Genocide of 1994, Muslims were held in low regard, because they were seen as traders, in a land where farmers are highly regarded. The Muslim population before the genocide was 4% which was unusually low compared to that of neighbouring countries. Muslims were also affected by the genocide. There were only a few incidents in which Tutsis in mosques were attacked. The most widely known example occurred at Nyamirambo Main Mosque, where hundreds of Tutsi had gathered to take refuge. The refugees in the mosque fought off Hutu militias with stones, bows and arrows, putting up stiff resistance