Federal Democratic Republic of Ethiopia. Ethiopia is located in the Horn of Africa and is bordered on the north and northeast by Eritrea, on the east by Djibouti and Somalia, on the south by Kenya, and on the west and southwest by Sudan. Ethiopia is credited with being the origin of mankind. Bones discovered in eastern Ethiopia date back 3.2 million years. Ethiopia is the oldest independent country in Africa and one of the oldest in the world. Population (2005 est.): 77 million.