Why was the Danube built?

How hot was the Sahara desert in 1922? What is the adjective in the sentence Also in Russia is the Caspian Sea which is the largest inland body of water in the world? What kind of valve allows flow in only on direction? Why do people live along coasts? What is the phone number of the Ah-Tah-Thi-Ki Museum in Clewiston Florida? What is the second longest river in the world? Did the Panama Canal shorten trip from New York to San francisco? What is the importance of red fort in present time? What is Castle Crag of Drachenfels? What is the water passageway that leads to the Black Sea through turkey? How many times was the church in Mission San Jose built and rebuilt? Where is the Johnson County Museum Of History in Franklin Indiana located? Which impact was a result of the spanish mission system? What did the mission of san juan capistrano weapons? What is the economy of mount Everest? What nine provinces does the Yangtze river run through? When was Quebec bridge completed? What are the immediate and long-term effects on succession if 10-square-kilometers of a forest is cleared out? Does England surround Wales? Which country just south of Spain has a long coastline on the Atlantic and a shorter one on the Mediterranean sea?