| date | entity | event | name |
|---|---|---|---|
| 17/10/2001 | city | date founded | Sainte-Marguerite-du-Lac-Masson, Quebec |
| 17/10/1996 | company | date founded | Energoatom |
| 17/10/2004 | animal name | date born | Little Nicky (cat) |
| 17/10/2004 | armed organizacion | date end activity | Jama'at al-Tawhid wal-Jihad |
| 17/10/1825 | asterism | date discovered | NGC 305 |