PolitikHukum & traktatBudayaAntariksa
- 1830Kemerdekaan4 October 1830 (a provisional government declared independence from the Netherlands); 21 July 1831 (King LEOPOLD I ascended to the throne)CIA World Factbook
- 1951Meratifikasi Konvensi GenosidaUN Treaty Collection
- 1983Meratifikasi ICCPR (hak sipil & politik)UN Treaty Collection
- 1985Meratifikasi CEDAW (hak perempuan)UN Treaty Collection
- 1991Meratifikasi Konvensi Hak AnakUN Treaty Collection
- 1998Situs Warisan Dunia UNESCO pertamaFlemish BéguinagesUNESCO World Heritage
- 2000Bergabung dengan ICC (Statuta Roma)UN Treaty Collection
- 2017Meratifikasi Perjanjian Iklim ParisUN Treaty Collection
- 2023Penetapan Warisan Dunia terakhirFunerary and memory sites of the First World War (Western Front)UNESCO World Heritage
- 2024Pemilu legislatif terakhir2024-06-09IPU Parline
