ISO/IEC 8859-1:1998, Information technology — 8-bit single-byte coded graphic character sets — Part 1: Latin alphabet No. 1, is part of the ISO/IEC 8859 series of ASCII-based standard character encodings, first edition published in 1987. It is generally intended for Western European languages (see below for a list). It is the basis for most popular 8-bit character sets, including Windows-1252 and the first block of characters in Unicode.