What were some of the political-social and economic conditions driving industrial industrial growth from 1870 to 1900 in the US?

From 1870 to 1900, the U.S. experienced significant industrial growth driven by a combination of political, social, and economic conditions. The government adopted pro-business policies, including tariffs and land grants, which encouraged railroad expansion and industrial investment. Socially, a large influx of immigrants provided a cheap labor force, while urbanization created demand for goods and services. Additionally, technological innovations and the rise of corporate power facilitated mass production and the growth of industries such as steel and textiles.