Mustafa Kemal Atatürk system. The one-party regime was established "de facto" in 1925 after the adoption of the 1924 constitution. The only political party of the GNA was the "Peoples Party", founded by Mustafa Kemal on 9 September 1923. (But according to the party culture the foundation date was the opening day of Sivas Congress on 4 September 1919). On 10 November 1924 it was renamed "Cumhuriyet Halk Fırkası" or Republican People's Party (the word "fırka" was replaced by the word "parti" in 1935). Abolition of the Caliphate was an important dimension in Mustafa Kemal's drive to reform the political system and to
Celâl Bayar the Muslims in India to support the Turkish War of Independence. He was the Managing Director of what was the largest Turkish commercial bank until 1932. On 25 October 1937 Mustafa Kemal Atatürk appointed Bayar as Prime Minister of the 9th Government of Turkey after İsmet İnönü left the government. He continued to serve as prime minister when Atatürk died and İnönü became president in 1938 (10th government of Turkey). Differences of opinion with Inönü led him to resign from the position on 25 January 1939. Until 1945, he was a member of Cumhuriyet Halk Partisi (the Republican People's Party),