ascii, iso_8859_1, iso_8859_7, iso_8859_15...

man ascii
man iso_8859_1  (환경변수 설정 : LANG=en_US.iso88591)
man iso_8859_7
man iso_8859_15
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The ISO 8859 standard includes several 8-bit extensions to
the  ASCII  character  set  (also  known  as ISO 646-IRV).
Especially important is ISO 8859-1,  the  "Latin  Alphabet
No.  1",  which  has  become  widely  implemented  and may
already  be  seen   as   the   de-facto   standard   ASCII
replacement.

ISO  8859-1  supports  the following languages: Afrikaans,
Basque,  Catalan,  Danish,   Dutch,   English,   Faeroese,
Finnish,   French,  Galician,  German,  Icelandic,  Irish,
Italian, Norwegian,  Portuguese,  Scottish,  Spanish,  and
Swedish.

Note that the ISO 8859-1 characters are also the first 256
characters of ISO 10646 (Unicode).