thumb|A thirteen-digit ISBN, with the 978 at the beginning representing the List of GS1 country codes|Unique Country Code of Bookland "Bookland" is a fictitious country that exists solely in the European Article Number (EAN) barcode system, where it serves as the unique prefix of published books regardless of their country of origin. The codes "978" and later "979" were designated as Bookland prefixes in the 1980s to allow the EAN namespace to catalogue books by International Standard Book Numbers (ISBN) rather than requiring a separate or redundant EAN numbering system. Bookland does not repr
thumb|A thirteen-digit ISBN, with the 978 at the beginning representing the List of GS1 country codes|Unique Country Code of Bookland "Bookland" is a fictitious country that exists solely in the European Article Number (EAN) barcode system, where it serves as the unique prefix of published books regardless of their country of origin. The codes "978" and later "979" were designated as Bookland prefixes in the 1980s to allow the EAN namespace to catalogue books by International Standard Book Numbers (ISBN) rather than requiring a separate or redundant EAN numbering system. Bookland does not represent a real geographic location.
== History == Until January 1, 2007, all ISBNs were allocated as 9-digit numbers followed by a modulo 11 checksum character that was either a decimal digit or the letter "X". A Bookland EAN was generated by concatenating the Bookland UCC 978, the 9 digits of the book's ISBN other than its checksum, and the EAN checksum digit.
Discovered by embedding cosine similarity (sentence-transformers MiniLM, 384-dim).