Independence Day
September 15, Sunday
On 15 September 1821, after the final Spanish defeat in the Mexican War of Independence (1810–1821), the authorities in Guatemala declared the independence of all of Central America. That date is still celebrated as Independence Day in Costa Rica[32] even though, technically, under the Spanish Constitution of 1812 that had been readopted in 1820, Nicaragua and Costa Rica had become an autonomous province with its capital in León.Independence Day in other years
- 2021 September 15, Wednesday
- 2022 September 15, Thursday
- 2023 September 15, Friday
- 2025 September 15, Monday