| date | entity | event | name |
|---|---|---|---|
| 15/05/1976 | roller coaster | date Opened | Corkscrew (Cedar Point) |
| 10/05/2007 - 15/05/2007 | fire | date | Island Fire |
| 15/05/1991 | newspaper | date Ceased publication | Fortín Mapocho |
| 15/05/2005 | newspaper | date founded | Pinas (Philippine newspaper) |
| 15/05/2003 | award | date dissolved | Sakharov Prize |