Early Cyrillic alphabet Bulgarian Empire in order to write the Old Church Slavonic language. The modern Cyrillic script is still used primarily for some Slavic languages and for East European and Asian languages that were under Russian cultural influence during the 20th century. Among some of the traditionally culturally influential countries using it are Bulgaria, Serbia, Russia, Ukraine. The earliest form of manuscript Cyrillic, known as "ustav," was based on Greek uncial script, augmented by ligatures and by letters from the Glagolitic alphabet for consonants not found in Greek. The Glagolitic alphabet was created by the monk Saint Cyril, possibly with the aid
Old Turkic alphabet Old Turkic alphabet The Old Turkic script (also known as variously Göktürk script, Orkhon script, Orkhon-Yenisey script) is the alphabet used by the Göktürks and other early Turkic khanates during the 8th to 10th centuries to record the Old Turkic language. The script is named after the Orkhon Valley in Mongolia where early 8th-century inscriptions were discovered in an 1889 expedition by Nikolai Yadrintsev. These Orkhon inscriptions were published by Vasily Radlov and deciphered by the Danish philologist Vilhelm Thomsen in 1893. This writing system was later used within the Uyghur Khaganate. Additionally, a Yenisei variant is known from 9th-century