When I speak of the Wild West, I am referring to an era.

- Transcontinental Railroad (1869)

- Compressed air brakes (1869)

- Steel plow (John Deere, perfected in U.S.A., 1837, and widely adopted at this time)

- Barbed wire (1874)

- Wind pump for wells (1854)

- Transcontinental telegraph (1861)

- Telephone (1876)

- Dynamite (introduced in the U.S. in 1867)

- Advanced mining methods

- Kerosene lamp (1850-1860, improved in U.S.A.)

- Typewriter (1868)

- Alternating current and direct current generators (late 1880s) (Edison and Tesla)

- Improved surgical practices

- Steel suspension bridges

- Morse codes and telegraph lines

Not everything was invented in the U.S. like dynamite, but its practical application was implemented.

The most notable is the railroad and undoubtedly the inventions of Edison and Tesla.