... capabilities on the high seas is beset with difficulties. For aircraft the possibilities are immense. It is not extravagant to say that the 17th of December 1903, when the Wright brothers made the first free flight through the air in a power-driven machine, marks the beginning of a new era in the history ... — The War in the Air; Vol. 1 - The Part played in the Great War by the Royal Air Force • Walter Raleigh
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