The Republic Day of Turkey is one of the public holidays in Turkey, commemorating the proclamation of the republic in 1923. It lasts 35 hours, starting at 1:00 pm on October 28.
On 29 October 1923, Mustafa Kemal declared that Turkey would be a republic and renamed it as the Republic of Turkey.
Turkey had effectively been a republic from April 23, 1920 (the establishment of Grand National Assembly of Turkey) but official recognition of this came only 3 years later. On 29 October 1923, the new name of the nation and its status as a republic was declared. After that, a vote occurred in the Grand National Assembly of Turkey and Atatürk was selected as the 1st president of the Republic of Turkey by unanimous vote.
Since then, every year on October 29 is celebrated as Republic Day in Turkey.