The Manx orthography is unlike that of Irish and Scottish Gaelic, both of which use similar spelling systems derived from written Early Modern Irish, alt. Classical Irish, which was the language of the educated Gaelic elite of both Ireland and Scotland (where it is called Classical Gaelic) until the mid-19th century. In general, these orthographies retain spelling and derivation from older Gaelic, which means that there is not in a one-to-one system. Both systems use only 18 letters to represent around 50 phonemes. While Manx in effect uses the English spelling system, except for and , the 24 letters used in its orthography likewise covers a similar range of phonemes, and therefore many digraphs and trigraphs are used.