2 observances land on 10 December. We have not found a recorded founder for any of them.
| Observance | Declared by | First year | Source |
|---|---|---|---|
| Alfred Nobel Day or Nobeldagen Sweden | no record | — | — |
| Human Rights Day International | 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 10 December here. The next one is Thursday, 10 December 2026.
Thursday, 10 December 2026 has no name yet. It costs $2.