| date | entity | event | name |
|---|---|---|---|
| 18/04/1980 | former country | data end | Southern Rhodesia |
| 18/04/1981 | file format | date released | Device independent file format |
| 18/04/2011 | organization | date founded | Independent High Authority for Elections |
| 18/04/1952 | organization | date founded | Federação Gaúcha de Basketball |
| 18/04/1949 | organization | date founded | Freiwillige Selbstkontrolle der Filmwirtschaft |