April 23 of every year is celebrated as National Sovereignty (Ulusal Egemenlik) and Children's Day (Çocuk Bayramı) in Turkey. It is an official non-working holiday nationwide where all government offices or entities, state and private schools, as well as most businesses are usually closed on this day. Official ceremonies are usually held by the local government entities to commemorate the creation of Turkish Parliament (Grand National Assembly) which took place on the 23rd of April in 1920. The major celebration on this day takes place at the Ataturk Mausoleum in the capital city of Ankara where a ceremony is held and wreaths are being laid at the monument of Mustafa Kemal Ataturk, the founder of Turkish Republic.
