Which early 20th century Turkish leader abolished the use of the Arabic alphabet, Islamic traditions, Islamic legal system, Muslim schools and the wearing of the veil by women in Turkey?

After the fall of the Ottoman Empire, the founder and first president of the Republic of Turkey, Mustafa Kemal, launched a revolutionary campaign to create a modern, secular, and Western-oriented nation. Given the honorific surname Atatürk, meaning "Father of the Turks," he believed that separating religion from public life was essential for the country's progress and survival. His vision required a fundamental break from the traditions and institutions that had defined the old empire for centuries.

To achieve this transformation, Atatürk implemented a series of radical reforms. One of the most significant was the replacement of the Arabic script with a new Latin-based alphabet in 1928, a move designed to increase literacy and sever cultural ties with the Islamic world. He also abolished the Caliphate, the religious leadership of Sunni Islam. The legal system underwent a complete overhaul, with Islamic Sharia law being replaced by secular civil and penal codes modeled after those in Switzerland and Italy, a change that included the prohibition of polygamy.

This wave of secularization extended into all aspects of Turkish society. Religious schools were closed and replaced with a nationalized, secular education system. Traditional forms of dress were also targeted; the fez was banned for men, and the wearing of the veil by women was strongly discouraged as Atatürk promoted a more modern and egalitarian public appearance. These sweeping changes fundamentally reshaped Turkey's identity and laid the foundation (Review) for the modern republic.