- Lucy, discovered in Ethiopia in 1974, was a 3.2 million year old ancestor of humans who migrated from Africa to Asia. - Ancient Egypt developed along the Nile River beginning around 7,000 BC, establishing agriculture, government, religion, and writing. They built pyramids and controlled the flooding of the Nile. - Beginning around 1000 BC, the Bantu people migrated out of Nigeria, conquering with iron weapons and spreading their language, agriculture, and ironworking throughout central and southern Africa.