18571923

18571923, typically written as 1857–1923, is a date range used in historical writing to denote either the lifespan of a person born in 1857 and who died in 1923, or to indicate the historical period spanning those years. Without context, the string does not refer to a single entity.

Historically, the period from 1857 to 1923 encompasses the late Victorian era, the fin de siècle, and the early interwar years. It saw rapid industrialization, imperial expansion, and the growth of modern nation-states. Major political and military events include the Indian Rebellion of 1857, the unification processes in Italy and Germany, World War I (1914–1918), the Russian Revolution of 1917, and the subsequent reshaping of Europe through the 1919 Paris Peace Conference and the 1920 founding of the League of Nations. The period also includes significant scientific and cultural developments, such as advances in medicine, physics, and literature associated with modernism.

Economic and social changes included urbanization, labor movements, and new forms of governance. The year 1923, toward the end of the span, was marked in many regions by economic turmoil, such as the Weimar Republic's hyperinflation in Germany and ongoing postwar adjustments elsewhere.

In biographical contexts, 1857–1923 helps indicate the life timeline of individuals who contributed to politics, science, art, and culture during that era.