Orville and Wilbur Wright, the inventors of the first flying machine, had always had a compelling interest in aeronautics and mechanics. As young boys, they earned money by making and selling kites and mechanical toys. Later, they built a printing press and operated a bicycle-repair shop. In 1903, the Wright brothers built their first airplane. They even designed and built their own source of propulsion - a lightweight gasoline engine. By 1905, they had perfected the first airplane that could remain airborne for half an hour at a time As the contributors of one of the most outstanding engineering achievements in history, the Wright brothers are called the fathers of aviation
The Wright brothers are called the fathers of aviation because they
The Wright brothers are called the fathers of aviation because they
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flew the first flying machine
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invented and flew the first flying machine
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designed flying machines for airlines
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designed flying machines that could land on water.
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new irrigation waterways were built
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men who had been soldiers provided a plentiful workforce
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new machinery permitted farming on a large seale
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the Greal Lakes were linked
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must buying
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must buy
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must be buying
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have bought
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strong
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clever
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lazy
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fast
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he was going to be late
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he left realizing his lateness
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he realized about being late
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None
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was the home of the Treasury and the patent Office
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was a model for building the new federal district
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defended the east coast against invaders
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linked the federal district with the ocean
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allusive
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revealing
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referential
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pertinent
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