Origins of Hutu, Tutsi and Twa adults has a high capacity for lactose digestion, a surprisingly high number for an agrarian people, which Mamdani suggests may be the result of centuries of intermarriage with Tutsi. Bethwell Ogot in the 1988 UNESCO "General History" further notes that the number of pastoralists in Rwanda increased sharply around the fifteenth century. Although Luis et al. (2004) in a more general study on bi-allelic markers in many African countries found a statistically significant genetic difference between Tutsi and Hutu, the overall difference were not large. Modern-day genetic studies of the Y-chromosome generally indicate that the Tutsi, like the Hutu, are
Gikondo massacre Gikondo massacre The Gikondo massacre was the mass murder of about 110 people of Tutsi identity, including children, who sheltered in a Polish Pallottine mission church in , Kigali. The massacre took place on April 9, 1994 and was executed by Interahamwe militia under supervision of the Hutu presidential guard. The massacre was the first absolute proof of a genocide discovered by UNAMIR during the Rwandan Genocide in 1994. The Rwandan Genocide began on April 6, 1994, after the plane carrying Rwandan president Juvénal Habyarimana and Cyprien Ntaryamira, the president of Burundi on board was shot down while approaching the