The TVTropes Trope Finder is where you can come to ask questions like "Do we have this one?" and "What's the trope about...?" Trying to rediscover a long lost show or other medium but need a little help? Head to Media Finder and try your luck there. Want to propose a new trope? You should be over at the Trope Launch Pad.
- Show Spoilers
- Night Vision
- Sticky Header
- Wide Load

I'm not sure if this is something that would already be listed as a trope, but it feels like it. In the book Sophies World, there are several instances where Alberto tells Sophie about a person from history and each time it's a woman, and Sophie is convinced that that's why she can't find entries on any of them in her encyclopedia. The trope in this would be either something about how women are insignificant [which struck me as a possible title], or another possible trope could be a situation in which you look through an encyclopedia or other reference work and it seems to have everything except what you're looking for. So are either of these existing tropes?