sentences:  The country's name was restored by President Laurent-Désiré Kabila following the fall of Mobutu in 1997.The geographical area now known as the Democratic Republic of the Congo was populated as early as 90,000 years ago, as shown by the 1988 discovery of the Semliki harpoon at Katanda, one of the oldest barbed harpoons ever found, believed to have been used to catch giant river catfish.Bantu peoples reached Central Africa at some point during the first millennium BC, then gradually started to expand southward.