The Industrial Revolution and Its Diffusion

Early factories needed power before anything else, and running water was the only reliable source machines could use. A waterwheel only works where a river drops fast enough, so the first textile mills clustered on narrow bands of riverbank. Coal mattered too, since smelting iron and running early engines required it close by, because hauling coal long distances over bad roads was slow and expensive. Location, in other words, was dictated by geology and geography, not by choice.

The steam engine changed the equation. Burning coal to boil water and drive a piston meant a factory no longer had to sit on a river, it just had to be reachable by cart, canal, or later rail. That untethered industry from specific riverbanks and let it concentrate instead near coalfields or wherever labor, canals, and markets made sense, which is why cities like Manchester and Birmingham boomed inland. This single shift is why the Industrial Revolution could diffuse at all, first across Britain, then to Belgium, Germany, and France, each with their own coal basins, then across the Atlantic to the northeastern United States by the early 1800s.

As output grew, factories needed more raw cotton, rubber, and ore than nearby regions could supply, and they needed buyers beyond the local market. European powers answered both needs by expanding colonial control over Africa and Asia, extracting resources cheaply and selling finished goods back to captive markets. Industrialization and colonialism fed each other, which is exactly the relationship Wallerstein's core and periphery model describes next: industrial cores pulling wealth from peripheral regions kept in a resource-supplying role.