18941989

18941989 is the concatenation of two calendar years that is commonly used to denote a lifespan or a historical period in scholarly and archival contexts. When separated by an en dash and written as 1894–1989, the notation indicates that a person was born in 1894 and died in 1989, or that a project, institution, or other entity was active during that interval. In encyclopedia entries and genealogical databases, this form is a standard shorthand after a name or designation.

The range 1894–1989 spans late 19th to late 20th century, a period characterized by rapid industrialization, two world wars, the Great Depression, the rise and fall of empires, and the dawn of the digital age. It encompasses developments in science, technology, politics, and culture that shaped much of the modern era. The exact interpretation depends on context: biographical lifespans, organizational lifetimes, or historical eras defined by those years.

Usage notes: If only partial information is known, editors may use abbreviations such as 'b.' for born or 'd.' for died, or 'c.' for circa. The form is typically used in English-language reference works, bibliographies, and archival cataloging, and it can be adapted to other date ranges as needed.