This paper aims to explore the main achievements of the early Republic of Turkey under the leadership of Mustafa Kemal Atatürk. Atatürk represented the nation, the Grand National Assembly, and the new government. This study opposes the position of some scholars who define the framework of political, economic, and social views to aid in the construction of the Turkish nation-state eclectic. The importance of republicanism consisted in several major aspects, which are reviewed and assessed in different ways in the range of research works. This study also opposes to the statement that The Republic of Turkey was the first republican form of government in Muslim World and Atatürk was the first to secularize the state. The results show that the changes provided by Atatürk came at the right time to keep the country between the strongest developing countries in the world.