Bulgarian alphabet been retained in Roman script. The 2012 "Official Orthographic Dictionary of the Bulgarian Language" by the Bulgarian Academy of Sciences permits widely known proper names to remain in their original alphabet. Example sentences are given, all containing names of American IT companies: Yahoo, Microsoft, YouTube, PayPal, Facebook. Bulgarian alphabet The Bulgarian alphabet is used to write the Bulgarian language. In AD 886, the Bulgarian Empire introduced the Glagolitic alphabet, devised by Saints Cyril and Methodius in the 850s. The Glagolitic alphabet was gradually superseded in later centuries by the Cyrillic script, developed around the Preslav Literary School, Bulgaria at the
Glagolitic script If they were added by Cyril, it is likely that they were taken from an alphabet used for Christian scripture. It is frequently proposed that the letters "sha" , "tsi" , and "cherv" were taken from the letters "shin" ש and "tsadi" צ of the Hebrew alphabet, and that Ⰶ "zhivete" derives from Coptic "janja" Ϫ. However, Cubberley (1996) suggests that if a single prototype were presumed, the most likely source would be Armenian. Other proposals include the Samaritan alphabet, which Cyril learned during his journey to the Khazars in Cherson. Glagolitic letters were also used as numbers, similarly to