Orthography (teaching of) ; Spelling (teaching of) ; Sociolinguistics ; Ideologie und Sprache; Ideology and language; Ideology and linguistics; Ideologie und Sprachwissenschaft; Language and ideology ; Sprachenpolitik; Language management; Language politics ; Sprachenwahl; Language choice; Diglossia ; Minoritätensprache; Minority language ; Language revival; Language revitalization ; Rechtschreibung; Spelling; Orthography ; Corsican