<Tr> <Th> French </Th> <Th> Fon </Th> <Th> Haitian Creole </Th> <Th> English </Th> </Tr> <Tr> <Td> la maison </Td> <Td> afe a </Td> <Td> kay la </Td> <Td> the house </Td> </Tr> <P> Haitian Creole developed in the 17th and 18th centuries on the western third of Hispaniola in a setting that mixed native speakers of various Niger--Congo languages with French colonizers . In the early 1940s under President Élie Lescot, attempts were made to standardize the language . American linguistic expert Frank Laubach and Irish Methodist missionary H. Ormonde McConnell developed a standardized Haitian Creole orthography . Although some regarded the orthography highly, it was generally not well received . Its orthography was standardized in 1979 . That same year Haitian Creole was elevated in status by the Act of 18 September 1979 . The Institut Pédagogique National established an official orthography for Creole, and slight modifications were made over the next two decades . For example, the hyphen (-) is no longer used, nor is the apostrophe . The only accent mark retained is the grave accent in ⟨ è ⟩ and ⟨ ò ⟩ . </P> <P> The Constitution of 1987 upgraded Haitian Creole to a national language alongside French . It classified French as the langue d'instruction or "language of instruction", and Creole was classified as an outil d'enseignement or a "tool of education". The Constitution of 1987 names both Haitian Creole and French as the official languages, but recognizes Haitian Creole as the only language that all Haitians hold in common . </P>

When did haitian creole become a written language
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