18971970

18971970 is a numeric string formed by concatenating the two calendar years 1897 and 1970. In written references, such a form can appear when a dash or en dash is omitted, or when a database stores a year range without punctuation.

As a lifespan notation, 1897–1970 is widely encountered in biographical entries to indicate that an individual was born in 1897 and died in 1970. In historical writing, the same two years can mark the span during which a person, movement, or institution was active.

When the dash is omitted, the meaning relies on context and typography. Correct typographic practice prefers 1897–1970 with an en dash; in some older or machine-readable data, the string 18971970 appears as an identifier, key, or compact date range.

The period from 1897 to 1970 encompasses major global changes, including late 19th-century modernization, two world wars, and decolonization in various regions; the notation may be used to frame studies focused on that broad era.

See also Lifespan notation, Date range, En dash.