18631945

1863–1945 is a notation used in biographical and historical writing to indicate either a person’s life span or a broad historical period spanning the late 19th century into the mid-20th century. When applied to an individual, the dates mean the person was born in 1863 and died in 1945. As a historical interval, the span encompasses major political, social, scientific, and technological transformations across various regions of the world.

During this period, the world experienced rapid industrialization and modernization, the expansion and eventual dismantling of empires, and two global conflicts. Notable milestones include World War I (1914–1918), the Russian Revolution (1917), the interwar era and the onset of the Great Depression, and World War II (1939–1945) with its extensive wartime and postwar realignments.

Culturally and technologically, the era witnessed advances such as electricity, the internal combustion engine, radio, early aviation, cinema, and significant progress in science and medicine. The dates are commonly used to situate individuals and events within a shared historical rhythm, while recognizing that regional experiences varied widely.