| Year | Reform |
| 1922 | Sultanate abolished (November 1). |
| 1923 | Treaty of Lausanne secured (July 24).
Republic of Turkey with capital at Ankara proclaimed (October 29). |
| 1924 | Caliphate abolished (March 3).
Traditional religious schools closed, seriat abolished. Constitution adopted (April 20). |
| 1925 | Dervish brotherhoods abolished.
Fez outlawed by the Hat Law (November 25). Veiling of women discouraged Western clothing for men and women encouraged.
Western (Gregorian) calendar adopted. |
| 1926 | New civil, commercial, and penal codes based on European models adopted. New civil code ended Islamic polygamy and divorce by renunciation and introduced civil marriage.
Millet system ended. |
| 1927 | First systematic census. |
| 1928 | New Turkish alphabet (modified Latin form) adopted. State declared secular (April 10) constitutional provision establishing Islam as official religion deleted. |
| 1933 | Islamic call to worship and public readings of the Kuran (Quran) required to be in Turkish rather than Arabic. |
| 1934 | Women given the vote and the right to hold office.
Law of Surnames adopted--Mustafa Kemal given the name Kemal Atatürk (Father Turk) by the Grand National Assembly Ismet Pasha took surname of Inönü. |
| 1935 | Sunday adopted as legal weekly holiday.
State role in managing economy written into the constitution. |
