| date | entity | event | name |
|---|---|---|---|
| 27/04/1994 | former country | data end | Transkei |
| 27/04/1994 | former country | data end | Venda |
| 27/04/1961 | former country | data end | Sierra Leone Colony and Protectorate |
| 27/04/2011 | airplane | date First flight | Boeing Phantom Ray |
| 27/04/1952 | airplane | date First flight | Tupolev Tu-16 |