6 observances land on 23 April. We have not found a recorded founder for any of them.
| Observance | Declared by | First year | Source |
|---|---|---|---|
| Canada Book Day Canada | no record | — | — |
| Castile and León Day | no record | — | — |
| Khongjom Day Manipur | no record | — | — |
| World Book Day | no record | — | — |
| UN English Language Day United Nations | no record | — | — |
| UN Spanish Language Day United Nations | 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 23 April here. The next one is Friday, 23 April 2027.
Friday, 23 April 2027 has no name yet. It costs $2.