Orthography reform

19th and 20th century dispute in Greece about whether the popular language (Demotic) or a cultivated imitation of Ancient Greek (katharevousa) should be official; settled in favour of the former

Spanish-language orthography created by A. Bello and J. G. del Río, published in 1823; briefly officially used in Chile

1922–24 Soviet reform of the Armenian orthography

orthography for Occitan language

orthographic reforms of the Russian alphabet

North Korean orthography of the Korean language, published in 1948 and in force until 1954; introduced six additional Hangul letters

codification of Czech orthography by Jan Hus; introduced diacritics ´ and ˇ

Belarusian orthography reform

proposed English language spelling reform