In the 1920s this language of Anatolia switched from the Arabic to the Latin alphabet
.... A one-handed 
fingerspelling system for Arabic script was used in the 19th and early 20th 
centuries until... [DOC] [TLE] Turkish - Language Information & Resources [PAR] Major linguistic and cultural reforms introduced by Ataturk in the 1920s have had 
an enormous ... Modern Turkish is descended from Old Anatolian, a language 
disseminated ... Ottoman Turkish was written in an Arabic script.