Answer ( 1 )

  1. Wheel, 3500 B.C.
    Concrete, 1300 B.C.
    Compass, 1050 B.C.
    Steam Engine, 1698
    Petrol, Before First Industrial Revolution
    Railways, 1820
    Morse Code and Telegraph, 1830-1840
    Electricity, 1831
    Automobile, 1886
    Airplane, 1903

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