Introduction
2) Economic growth: A rapid expansion of the American economy, industrially, financially and agriculturally occurred in the United States from the Civil War to WWI. This expansion moved the United States from one of the world’s largest economies to far and away largest and most productive national economy in the world, far outpacing both Great Britain and Germany, its closest rivals.
3) Imperialism: The era around the turn of the century witnessed the assertion of American power abroad. This was the era of Teddy Roosevelt – the era of American imperialist expansion in Latin American and Asia. This “imperialism” did not always take a direct military form. More often than not it was economic imperialism, as in the Caribbean, Central and South America.
4) Immigration: a massive wave of immigration hit the United States in the decades after the Civil War, bringing millions of new (working age) people into the country. This immigration was a critical piece of the American puzzle. Without it, economic expansion to the degree that the United States experienced would have been impossible. Wages would have risen quickly, putting a check on industrial production. The great infrastructural projects – like the building of the world’s largest railway system – would not have been possible had not the U.S. labor force been given such a powerful re-enforcement.
5) Progressivism: the birth of U.S. progressive movement was in many ways a direct result of the huge social changes brought about by the triple forces of industrialization, immigration and urbanization. People, especially the growing middle class, realized that without changes to the social fabric, large-scale social problems would threaten the entire country. As a result, organizations (mostly non-governmental) were created to advocate for certain causes – prohibition, workers’ rights, women’s rights, food safety, urban renewal, poverty relief, education reform, and minority rights. Progressive reformers were motivated by many different sets of ideals, whether they be religious, communist, anarchist, or scientific.