How many tourist was in 1950?

What bridge engineer of African native American and European descent designed and built over 100 bridges across the south during his life as a slave and free man? What are most trees in a coniferous forest called? What directions does the Tyler river flow? What is extremely arid? Non living things in boreal forests? Why dams are made stronger? What are the resources of tropical rain fotest? Is mount fuji on the ring of fire? Who build walls? Why was Cape Town so significant before the Suez Canal was built? What would happen if their would any major changes in tropical rain forest? How many different kind of food do you eat? What river is the longest river in the world and has hippos? Where is the Linderhof Palace located? What fact would you select to support your understanding of Through the Tunnel? Which ocean does not most of the international date line pass? A succession of ocean waves set in motion by a submarine earthquake is called what? How heavy is the colosseum? What body of water borders the state of Michigan? How many day the Hirakud dam took to build?