| date | entity | event | name |
|---|---|---|---|
| 20/04/2017 | fire | data end | 2017 Port Hills fires |
| 20/04/2010 | motorcycle | date production started | Suzuki |
| 20/04/1960 | team | date Foundation | Atlético Belén |
| 20/04/1999 | protected area | date founded | Descobrimento National Park |
| 20/04/1828 | organization | date founded | Gesellschaft für Erdkunde zu Berlin |