Final answer:
In the 1800s, South Carolina's industry saw a significant shift towards textile production, with factories being built to process raw cotton and the expansion of railroads enhancing trade, especially in Charleston. These changes were part of a larger movement towards diversifying the South's economy post-Civil War, despite continued heavy reliance on the Northern factories and slave labor for cotton production.
Step-by-step explanation:
During the 1800s, industry changes in South Carolina were characterized by the building of factories to turn raw cotton into textiles, aligning with the New South economic development approach. Although there were various industries like pottery and tanneries, the significant transformation was the shift to textile production. As railroads in South Carolina expanded, they played a crucial role in shaping the economy, particularly aiding the transportation of goods to important ports like Charleston. The increase in total rail miles by 400 percent during the 1870s and 1880s and the rise of textile manufacturing, with the South becoming the leading producer of cloth, marked significant economic shifts. However, the dependency on the Northern factories was also a reality, as many mills were owned and controlled by Northerners. With regards to the South Carolina's overall economy in the 1800s, the growth of small towns contributed to enhanced transportation infrastructure and improved trade, while building a diversified economy was encouraged post-Civil War to overcome the over-reliance on cotton plantations.
The impact of new railroads on South Carolina's economy was to facilitate the movement of goods, notably enabling planters to transport their products more efficiently to the port of Charleston. This not only sustained Charleston as a powerful port but also integrated the South more deeply into the American and world markets. However, these developments didn't occur in isolation, and economic changes such as the end of international slave trade increased domestic demand and consequently intensified reliance on slave labor for cotton production—a major economic driver of the South's economy.