21 ore 38 min, 27 ottob 1873 anni - Barbed Wire

Descrizione:

Lucien B. Smith invented barbed wire, allowing the enclosure of land for farmers. However, the invention did not reach the mass market until 1873 when it was made modern by Joseph Glidden. Even so, the significance of this event was that it provided a basis for farming norms as land opened in the West.

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