European powers colonized much of Africa and other regions in the late 1800s for economic and political reasons. They sought to obtain raw materials, expand their influence, and believed imperialism demonstrated their superiority. By 1914, Europe had divided most of Africa among itself without input from Africans. This arbitrary partitioning combined different ethnic and linguistic groups within colonial borders, sowing tensions that contributed to post-colonial conflicts like the Rwandan genocide, where Hutu militias killed over 1 million Tutsi and moderate Hutu from 1994 in just 3 months. The legacy of European colonialism continues to impact many former colonies.