1870s (1 ene 1870 año – 1 oct 1879 año)

Descripción:

Second Industrial Revolution: A period of rapid industrialization marked by advancements in steel production, electricity, and mass manufacturing. These industries fueled the Gilded Age, which widened the gap between the wealthy few and the many poor.

Rise of Railroads: J.P. Morgan and Cornelius Vanderbilt consolidate railroad lines, increasing efficiency and profits.

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