Letter of the Latin alphabet
Also known as Latin epsilon · Latin letter open e
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1 identifiers linking Ɛ across the web's reference databases
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Latin epsilon or open E is a letter of the extended Latin alphabet, based on the lowercase of the Greek letter epsilon (ε). It was introduced in the 16th century by Gian Giorgio Trissino to represent the pronunciation of the "open e" in the Italian language; this use of the letter has since become the standard in IPA notation (see § Usage below). Since the 20th century, the letter also occurs in the orthographies of many Niger–Congo and Nilo-Saharan languages, such as Ewe, Akan, Lingala, Dinka and Maasai, for the vowel or, and is included in the African reference alphabet.