6 observances land on 15 April. We have not found a recorded founder for any of them.
| Observance | Declared by | First year | Source |
|---|---|---|---|
| Day of the Sun North Korea | no record | — | — |
| Father Damien Day Hawaii | no record | — | — |
| Jackie Robinson Day United States | no record | — | — |
| National American Sign Language Day United States | no record | — | — |
| Pohela Boishakh Bengali New Year | no record | — | — |
| Universal Day of Culture | 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 15 April here. The next one is Thursday, 15 April 2027.
Thursday, 15 April 2027 has no name yet. It costs $2.