Republic of Turkey
Who & why: Mustafa Kemal (later given the surname Atatürk, "Father of the Turks") leads the nationalist movement to victory, and the Grand National Assembly proclaims the Republic of Turkey on 29 October 1923, with Ankara as its capital. His government pushes through sweeping reforms within a generation: the caliphate is abolished in 1924, a new Latin alphabet replaces Arabic script in 1928, the state is formally declared secular in 1937, and women win full suffrage in 1934.
What it represents: the flag is not a new design — it is the same red field with white crescent and star flown by the late Ottoman Empire, its exact proportions and shade eventually fixed by the Turkish Flag Law of 1936, honestly continuous rather than a break marking the republic's founding.
Wikipedia says the Republic kept the last Ottoman flag in 1923, that Turkish Flag Law No. 2994 of 29 May 1936 set the flag's measures, proportions and red tone, and that Law No. 2893 of 22 September 1983 replaced it. FOTW says no design change occurred when the Empire became the Republic, that the 1936 law adopted the 1844 design without alteration, that the law was enacted on 29 May 1936 and published on 5 June 1936 (as No. 2,995), that Law No. 2,893 superseded it in 1983, and that the law gives no colour specification.
- Flag of Turkey — Wikipedia compiled
- Turkey — Flags of the World (CRW Flags) compiled
Not established: The sources give the 1936 law's number as 2994 or 2,995. FOTW does not describe the 1919–23 war.