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Agriculture, Prehistoric --- Agriculture --- Neolithic period --- New Stone age --- Stone age --- Origin of agriculture --- Domestication --- Prehistoric agriculture --- Prehistoric peoples --- Origin. --- history. --- History --- Food --- Africa --- Antiquities. --- Origin --- history

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Airplanes --- Aeronautics. --- Avions --- Aéronautique --- Design and construction. --- Conception et construction --- Aéronautique --- Aérodynamique --- Aerodynamics --- Aérodynamique.

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Aeronautics --- Airplanes --- Design and construction