19302009

19302009 is a concatenated numeric string that may be used as a compact representation of the date range 1930 to 2009. It is not an official designation; rather, it appears in archival tags, product catalogs, and data fields where spaces or punctuation are disallowed. In bibliographic records, it may be used to indicate the period of activity, production years, or coverage of a collection.

Because the string omits separators, its interpretation depends on context; without metadata, it can be read as a single year, a code, or a range. Systems that ingest such data typically normalize it to a standard range such as 1930–2009 or 1930s–2000s.

Covering 1930–2009 includes major events and developments across the 20th and early 21st centuries, such as the Great Depression, World War II, the post-war era, decolonization, the Cold War, the rise of digital computing, the internet age, and the early 21st century. The period also saw significant cultural, social, and technological changes that shaped modern society.

In practice, 19302009 is mainly of interest in information science and cataloging as a compact formatting artifact rather than a topic with a discrete identity. See also date range notation and archival metadata for related concepts.