History of the Republic of Turkiye
The current 29-letter Turkish alphabet was established as a personal initiative of the founder of the Turkish Republic, Mustafa Kemal Atatürk. It was a key step in the cultural part of Atatürk's Reforms, introduced following his consolidation of power. Having established a one-party state ruled by his Republican People's Party, Atatürk was able to sweep aside the previous opposition to implementing radical reform of the alphabet and established a Language Commission. The commission was responsible for adapting the Latin script to meet the phonetic requirements of the Turkish language. The resulting Latin alphabet was designed to reflect the actual sounds of spoken Turkish, rather than simply transcribing the old Ottoman script into a new form.
Atatürk himself was personally involved with the commission and proclaimed an "alphabet mobilisation" to publicise the changes. He toured the country explaining the new system of writing and encouraging the rapid adoption of the new alphabet. The Language Commission proposed a five-year transition period; Atatürk saw this as far too long and reduced it to three months. The change was formalised by the Turkish Republic's law number 1353, the Law on the Adoption and Implementation of the Turkish Alphabet, passed on 1 November 1928. Starting 1 December 1928, newspapers, magazines, subtitles in movies, advertisement and signs had to be written with the letters of the new alphabet. From 1 January 1929, the use of the new alphabet was compulsory in all public communications as well the internal communications of banks and political or social organisations. Books had to be printed with the new alphabet as of 1 January 1929 as well. The civil population was allowed to use the old alphabet in their transactions with the institutions until 1 June 1929.