The Congo River has been called by many different names over the centuries. Some of the common synonyms for the Congo River include the Zaire River, which is the name used during the colonial period under Belgian rule. Other names include the Lualaba River, which is the longest stretch of the river, and the Livingstone River, named for the famed explorer and missionary who navigated its waters in the late 1800s. Another synonym is the Kongo River, used to refer to the part of the river that flows through the Democratic Republic of Congo close to the border with Angola. Despite its many names, the Congo River remains one of the most fascinating and important waterways on the continent of Africa.