| date | entity | event | name |
|---|---|---|---|
| 21/11/1996 | eruption | date | Humberto Vidal explosion |
| 21/11/1992 | team | date Foundation | Banco Rugby Club |
| 21/11/1976 | recurring event edition | date final | World Popular Song Festival 1976 |
| 21/11/2015 | recurring event edition | date final | Zecchino d27Oro 2015 |
| 21/11/1981 | organization | date founded | Mu Sigma Upsilon |