| date | entity | event | name |
|---|---|---|---|
| 01/05/1973 | city | date founded | Saint-Fulgence, Quebec |
| 01/05/1954 | city | date founded | Saint-Jean-de-Cherbourg |
| 01/05/1991 | encyclical | date | Centesimus annus |
| 01/05/2007 | airplane | date Introduction | General Atomics MQ-9 Reaper |
| 01/05/1985 | airplane | date Introduction | Panavia Tornado ADV |