| date | entity | event | name |
|---|---|---|---|
| 30/10/1937 | city | date founded | Sainte-Catherine, Quebec |
| 30/10/2013 | file format | date released | X3D |
| 30/10/1969 | protected area | date founded | Örskär |
| 30/10/2018 | network | date founded | Google Fi |
| 30/10/2012 | network | date founded | Solar News Channel |