In the late-19th and early-20th centuries, industrialization transformed the US. What was once a land of isolated rural settlements with a few commercial cities became an urban industrial nation composed of large factories and increasingly complex firms by the early-20th century. Discuss the process of industrialization and incorporation in the US between 1870 and 1920. • Explain the technological and demographic changes that contributed to the industrialization of the United States. • How did the industrial revolution impact business practices? • How did industrialization affect American society, particularly cities, both positively and negatively?