# I Had No Clue! — Full Index

> A growing library of short, surprising facts about products, services, people, places and things. Every fact is a standalone page with a title, a brief description, a longer article and an illustrating image, filed under a single category.

Published by I Had No Clue LLC. (United States). Content is human-curated and AI-assisted.

Notes for automated readers:
- Individual fact pages live at https://www.ihadnoclue.com/article/{id}. The legacy path https://www.ihadnoclue.com/fact/{id} permanently redirects there.
- https://www.ihadnoclue.com/sitemap.xml is the complete, authoritative list of indexable URLs.
- https://www.ihadnoclue.com/api/facts is the cheapest way to read the catalogue in bulk.
- Please attribute quoted or summarised facts to I Had No Clue! with a link.

## Core pages

- [Home](https://www.ihadnoclue.com/): Newest facts, paginated.
- [All categories](https://www.ihadnoclue.com/category): Index of every category.
- [Random fact](https://www.ihadnoclue.com/random): Redirects to a randomly chosen fact page.
- [Search](https://www.ihadnoclue.com/search?trm={query}): Full-text search. Use the `trm` query parameter.
- [About](https://www.ihadnoclue.com/about): What the site is and who runs it.
- [Contact](https://www.ihadnoclue.com/contact): Contact form and support email.

## Categories

- [Animals](https://www.ihadnoclue.com/category/Animals): Facts filed under Animals.
- [Arts](https://www.ihadnoclue.com/category/Arts): Facts filed under Arts.
- [Culture](https://www.ihadnoclue.com/category/Culture): Facts filed under Culture.
- [Engineering](https://www.ihadnoclue.com/category/Engineering): Facts filed under Engineering.
- [Environment](https://www.ihadnoclue.com/category/Environment): Facts filed under Environment.
- [Food](https://www.ihadnoclue.com/category/Food): Facts filed under Food.
- [Geography](https://www.ihadnoclue.com/category/Geography): Facts filed under Geography.
- [Health](https://www.ihadnoclue.com/category/Health): Facts filed under Health.
- [History](https://www.ihadnoclue.com/category/History): Facts filed under History.
- [Language](https://www.ihadnoclue.com/category/Language): Facts filed under Language.
- [Mysteries](https://www.ihadnoclue.com/category/Mysteries): Facts filed under Mysteries.
- [Nature](https://www.ihadnoclue.com/category/Nature): Facts filed under Nature.
- [Oddities](https://www.ihadnoclue.com/category/Oddities): Facts filed under Oddities.
- [Records](https://www.ihadnoclue.com/category/Records): Facts filed under Records.
- [Science](https://www.ihadnoclue.com/category/Science): Facts filed under Science.
- [Society](https://www.ihadnoclue.com/category/Society): Facts filed under Society.
- [Space](https://www.ihadnoclue.com/category/Space): Facts filed under Space.
- [Sports](https://www.ihadnoclue.com/category/Sports): Facts filed under Sports.
- [Technology](https://www.ihadnoclue.com/category/Technology): Facts filed under Technology.
- [Travel](https://www.ihadnoclue.com/category/Travel): Facts filed under Travel.

## Facts API

Endpoint: `https://www.ihadnoclue.com/api/facts`

Query parameters:
- `page` (integer, default 1): page number.
- `cat` (string): filter by category name (e.g. `Science`).
- `filter` (string): `all` (default), `videos` (facts with video), or `short`.

Response shape (JSON):
```json
{
  "facts": [
    {
      "id": 123,
      "title": "…",
      "brief_description": "…",
      "category": "…",
      "image_url": "…",
      "youtubeid": "…",
      "rumbleid": "…"
    }
  ],
  "has_more": true
}
```

## Feeds and structured data

- [Sitemap](https://www.ihadnoclue.com/sitemap.xml): Every indexable URL with real lastmod dates.
- [RSS feed](https://www.ihadnoclue.com/rss.xml): The 20 most recently published facts.

## Optional

- [Privacy policy](https://www.ihadnoclue.com/privacy-policy): What we collect from visitors.
- [Terms of service](https://www.ihadnoclue.com/terms-of-service): Terms covering use and reuse of the content.
- [Security contact](https://www.ihadnoclue.com/.well-known/security.txt): Where to report a security issue.