| date | entity | event | name |
|---|---|---|---|
| 28/04/2004 | game | date released | Clannad (visual novel) |
| 28/04/2014 | newspaper | date founded | Daily Mountain Eagle |
| 28/04/2009 | newspaper | date founded | Ottawa Herald |
| 28/04/1949 | organization | date founded | International Authority for the Ruhr |
| 28/04/2014 | organization | date founded | Luhansk People's Republic |