Early African history involved people living as hunter-gatherers who later began herding livestock and farming. Around 3000 BC, the Bantu migration spread Bantu people, language, culture, and technology from Nigeria to other parts of Africa. In East Africa, the Kush kingdom developed along the Nile River in Sudan in 800 BC and traded gold, ivory, and iron as far as Egypt. The Axum kingdom located in Ethiopia prospered from trade starting in the AD 300s due to its strategic location on the Red Sea. Axum converted to Christianity in the AD 300s and remained an important center of African Christianity even after losing connections to neighbors in the AD 600s. The Great Zimbabwe civilization supplied gold