In the history of France, the period from 1789 to 1914, dubbed the "long 19th century" by the historian Eric Hobsbawm, extends from the French Revolution to the brink of World War I.
Throughout this period, France underwent significant transformations that reshaped its geography, demographics, language, and economic landscape, marking a period of profound change and development. The French Revolution and Napoleonic eras fundamentally altered French society, promoting centralization, administrative uniformity across departments, and a standardized legal code. Education also centralized, emphasizing technical training and meritocracy, despite growing conservatism among the aristocracy and the church. Wealth concentration saw the richest 10 percent owning most of the nation's wealth. The 19th century saw France expanding to nearly its modern territorial limits through annexations and overseas imperialism, notably in Algeria, Indochina, and Africa. Despite territorial gains, France faced challenges, including a slow population growth, compared to its European neighbors, and a late industrialization that saw a shift from rural to urban living and the rise of an industrial workforce. The loss of Alsace and Lorraine to Germany in the Franco-Prussian War further fueled nationalistic sentiments and set the stage for future conflicts.