| date | entity | event | name |
|---|---|---|---|
| 27/09/2004 | flag | date Adopted | Seal of Yerevan |
| 27/09/2004 | file format | date released | Digital Negative |
| 27/09/1983 | organization | date founded | GNU Project |
| 27/09/1964 | organization | date founded | Hipódromo de Arica |
| 27/09/1999 | organization | date founded | Minister for Gender Equality (Denmark) |