About Constitution Day
Constitution Day is observed on 18th August to honor the birth of the Indonesian constitution, the 1945 Constitution, which was established at a meeting of the Preparatory Committee for Indonesian Independence. The stipulation of the 1945 Constitution was to ensure unity after the independence of the Republic of Indonesia was proclaimed on August 17, 1945. Determination of Constitution Day is stated in Presidential Decree 18/2008 signed by President Susilo Bambang Yudhoyono on 10 September 2008.
Other Observances on August 18th 2025
National Fajita Day
Those who choose to observe National Fajita Day can do so by visiting their favorite restaurant and indulging in the celebrated Mexican inspired dish.
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National Science Day
August 18th is National Science Day in Thailand, commemorating King Mongkut's prediction and observation of a total solar eclipse in 1868.
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