| date | entity | event | name |
|---|---|---|---|
| 23/12/1976 | city | date founded | Sainte-Marie-de-Blandford, Quebec |
| 23/12/1998 | protected area | date founded | Ensillre kalkbarrskog |
| 23/12/1906 | team | date Foundation | Atlántida Sport Club |
| 23/12/1973 | organization | date founded | Lok Biradari Prakalp |
| 23/12/1926 | organization | date founded | Vlaams Rechtsgenootschap |