Great Lakes River. From 1844 through 1857, palace steamers carried passengers and cargo around the Great Lakes. In the first half of the 20th century large luxurious passenger steamers sailed the lakes in opulence. The Detroit and Cleveland Navigation Company had several vessels at the time and hired workers from all walks of life to help operate these vessels. Several ferries currently operate on the Great Lakes to carry passengers to various islands, including Isle Royale, Drummond Island, Pelee Island, Mackinac Island, Beaver Island, Bois Blanc Island (Ontario), Bois Blanc Island (Michigan), Kelleys Island, South Bass Island, North Manitou Island, South Manitou
African Great Lakes "Homo erectus" boy was discovered. More recently, a 3,500,000-year-old skull was discovered there, named "Kenyanthropus platyops", which means "The Flat-Faced Man of Kenya". Fishing—primarily of tilapia species but also of Nile perch—provides the main livelihood. With four Great Lakes on its borders, Uganda ranks as one of the world's largest producers of freshwater fish. The climate and rich volcanic soils in the highlands also sustain intensely cultivated croplands. The economies of the Great Lakes region states have different structures and are at various stages of development. The GDP real growth rate ranges from 5.1 percent in Burundi to 6.4 in