====== Всё о Unicode ======
http://unicode.org/
http://www.fileformat.info/info/unicode/char/43d/index.htm
https://ru.wikipedia.org/wiki/ISO_639
https://ru.wikipedia.org/wiki/%D0%A1%D0%BF%D0%B8%D1%81%D0%BE%D0%BA_%D0%B3%D0%BE%D1%81%D1%83%D0%B4%D0%B0%D1%80%D1%81%D1%82%D0%B2%D0%B5%D0%BD%D0%BD%D1%8B%D1%85_%D1%8F%D0%B7%D1%8B%D0%BA%D0%BE%D0%B2
https://basicweb.ru/html/language_codes.php