The document is a chapter from a world history textbook describing the rise of nationalist revolutions in Europe between 1789-1900. It discusses the influence of Enlightenment ideas, the conflicts between conservative, liberal, and radical political philosophies in early 1800s Europe. Notable events included nationalist uprisings in the 1830s that were crushed by conservatives, and the revolutions of 1848 that failed to unite liberals. The chapter also examines the unification of Italy and Germany in this period driven by nationalist sentiments.