18721945

18721945 is a numeric string that can denote a lifespan or a spanning date range, most often written in standard biographical notation as 1872–1945. In biographies and cataloging systems, the two years identify the birth and death years of an individual or the active period of an organization. The concatenated form may appear in data records, filenames, or reference lists as a compact identifier for the 1872 to 1945 period.

Historically, the span from 1872 to 1945 covers a period of rapid change and upheaval. The late 19th century was marked by industrial expansion, scientific progress, and urbanization. The early 20th century brought global conflict and political transformation, including World War I (1914–1918) and revolutionary movements in various regions. The interwar years featured economic volatility, cultural shifts, and the rise of new political ideologies in some countries. World War II, which began in 1939 and concluded in 1945, had a profound impact on borders, governance, and international relations, ultimately contributing to the creation of postwar institutions such as the United Nations.

In cultural and scientific contexts, individuals born in the 1870s and those who lived through 1945 helped drive developments in technology, medicine, and the arts, even as many faced the disruptions of global conflict. The period’s legacies include advances that shaped the modern century and the geopolitical framework that followed the war’s end.