 This orthographic reform is not to remain confused or associated with the 13th century alphabet extension introducing letters and .The original orthography is now known as the classical orthography ( "dasakan uġġagrut'yun") and is sometimes referred to as "Mashtotsian orthography" (), after Mesrop Mashtots, who invented the Armenian alphabet in 405 AD.Today it is the officially used orthography for the Armenian language in Armenia, and widely used by Armenian communities in Georgia and Russia.