The period between 1869 and 1910 marked a significant transformation in American manufacturing. The value of manufacturing in the United States increased from $3 billion in 1869 to $13 billion by 1910, reflecting a remarkable growth over those four decades.
During a shorter span, between 1875 and 1880, the value of U.S. manufacturing surged by $5 billion. This growth can be attributed to various factors, including advancements in technology, an influx of immigrant labor, the expansion of the railroad system, and increased demand for goods both domestically and internationally.
Overall, this period represents a critical phase in the industrialization of the United States, highlighting a shift from agrarian economies to an industrial powerhouse. If you need more detailed information or analysis on this topic, let me know!