9 observances land on 4 May. We have not found a recorded founder for any of them.
| Observance | Declared by | First year | Source |
|---|---|---|---|
| Anti-Bullying Day United Nations | no record | — | — |
| Bird Day United States | no record | — | — |
| Cassinga Day Namibia | no record | — | — |
| Coal Miners Day India | no record | — | — |
| Dave Brubeck Day United States | no record | — | — |
| Greenery Day Japan | no record | — | — |
| International Firefighters' Day | no record | — | — |
| Star Wars Day International observance | no record | — | — |
| Youth Day Fiji | no record | — | — |
"No record" means we could not find one, not that none exists. Where a founder is named, the source is named with it.
Who decides these? Nobody official. A brand, a trade body, a government, or one person with a website. Most are simply asserted and then repeated until they look official. Here, whoever names it first.
Nobody has ever named 4 May here. The next one is Tuesday, 4 May 2027.
Tuesday, 4 May 2027 has no name yet. It costs $2.