The Cyrillic alphabet is named after St. Cyril, a missionary from Byzantium. It was invented sometime during the 10th century AD, possibly by St. Kliment of Ohrid, to write the Old Church Slavonic language. The Cyrillic alphabet achieved its current form in 1708 during the reign of Peter the Great. Four letters were eliminated from the alphabet in a 1917/18 reform.
The Cyrillic alphabet has been adapted to write over 50 different languages, mainly in Russia, Central Asia and Eastern Europe. In many cases additional letters are used, some of which are adaptations of standard Cyrillic letters, while others are taken from the Greek or Latin alphabets.
The letters in blue had fallen out of use by the 1800 century. The letters in red were eliminated in the 1918 reform.
The names of the letters are in Russian.
Abaza, Abkhaz, Adyghe, Aghul, Akhvakh, Altay, Andi, Archi, Avar, Azeri, Bagvalal, Balkar, Bashkir, Bats, Belarusian, Botlikh, Budukh, Bulgarian, Buryat, Chamalal, Chechen, Chukchi, Chuvash, Crimean Tatar, Dargwa, Dungan, Enets, Erzya, Even, Evenki, Gagauz, Godoberi, Hinukh, Hunzib, Ingush, Itelmen, Kabardian, Juhuri, Kalmyk, Karakalpak, Karata, Kazakh, Ket, Khakas, Khanty, Khwarshi, Kildin Sámi, Komi, Koryak, Krymchak, Kumyk, Kurdish, Kyrgyz, Lak, Lezgi, Lingua Franca Nova, Macedonian, Mansi, Mari, Moksha, Moldovan, Mongolian, Montenegrin, Nanai, Nenets, Nivkh, Nogai, Old Church Slavonic, Orok, Ossetian, Russian, Ruthenian, Rutul, Serbian, Shor, Slovio, Tabassaran, Tajik, Talysh, Tat, Tatar, Tsez, Turkmen, Tuvan, Ubykh, Udi, Udmurt, Ukrainian, Uyghur, Uzbek, Votic, Yaghnobi, Yakut, Yukaghir, Yupik
Information about the history of the Cyrillic alphabet
ALPHABETUM - a Unicode font specifically designed for ancient scripts, including classical & medieval Latin, ancient Greek, Etruscan, Oscan, Umbrian, Faliscan, Messapic, Picene, Iberian, Celtiberian, Gothic, Runic, Old & Middle English, Hebrew, Sanskrit, Old Nordic, Ogham, Kharosthi, Glagolitic, Old Cyrillic, Phoenician, Avestan, Ugaritic, Linear B, Anatolian scripts, Coptic, Cypriot, Brahmi, Old Persian cuneiform: http://guindo.pntic.mec.es/~jmag0042/alphabet.html
Armenian, Avestan, Bassa (Vah), Beitha Kukju, Borama / Gadabuursi, Carian, Carpathian Basin Rovas, Coorgi-Cox, Coptic, Cyrillic, Dalecarlian runes, Elbasan, Etruscan, Fraser, Galik | Georgian (Asomtavruli & Nuskha-khucuri), Georgian (Mkhedruli), Glagolitic, Gothic, Greek, Irish, Kaddare, Khazarian Rovas, Korean, Latin, Lycian, Lydian, Manchu, Meroïtic, Mongolian, N'Ko, Ogham, Old Church Slavonic, Oirat Clear Script, Old Italic, Old Permic, Orkhon, Phrygian, Pollard script, Runic, Santali, Székely-Hungarian Rovás (Hungarian Runes), Somali (Osmanya), Sutton SignWriting, Tai Lue, Thaana, Todhri, Uyghur
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