Scientific transliteration, also called the International Scholarly System, is a system for transliteration of text from the Cyrillic to the Latin alphabet (romanization). This system is most often seen in linguistics publications on Slavic languages. The scientific transliteration system is purely phonemic, meaning that each character represents one meaningful unit of sound in a particular Slavic language. It is based on the Croatian alphabet, in which each letter corresponds directly to a Cyrillic letter of the related Serbian language. It was codified in the 1898 Prussian Instructions for libraries, or Preußische Instruktionen (PI). It can also be used to romanize the early Glagolitic alphabet, which has a close correspondence to Cyrillic.
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