What were the first man made waterway is called?

What is the oceans vegetation? Name the ocean between the british isles and America? How much did the Banpo bridge cost? Why little precipitation in the Sahara desert? Can American private vessels use the Suez Canal? What does deposition cause at the mouth of a river? What time of day did moses cross the red sea? How does the witchetty grub survive in the desert? What governments say if zoos should be banned or they should not be banned? The Great Lakes and the St Lawrence River have contributed to the growth and development of? Was Mount Everest a natural barrier? When did motte and baileys stop being used? Who was the first person to sing live on stage at Times Square? What was the rhythm for Dover Beach? What are the landmarks in Sesser IL? Was the veil in the holy of holies ever repaired? Why was banff national park created? Are amphibians found in the desert? Stonehenge is one of the only surviving pieces of architecture from the prehistoric period Although there is no way to determine the definite purpose of Stonehenge what is thought to be the purpose? What flows eastwards?