Foundation Day

A national or civic holiday marking the anniversary of a country's founding, the establishment of its capital, or the creation of a defining national institution, observed in countries including Australia (26 January, Australia Day), South Korea (3 October, Gaecheonjeol), and Saudi Arabia (23 September, National Day). Foundation Days often carry complex historical weight — particularly when the founding event involved the displacement of indigenous populations — leading to ongoing national debates about the appropriateness of the date and form of celebration.