Is It This?
Sources
Every public answer record is intended to carry its own source trail.
Preferred sources
Source selection favors government agencies, museums, universities, major scientific organizations, official historical institutions, original organizations, primary documentation, and reputable encyclopedic references.
How sources are used
Sources support the factual claims in an answer page. If a claim cannot be verified, it should be removed or remain in draft until reviewed.
Published library
Every published answer includes a source trail alongside the factual claims it supports. Source links are selected for authority, relevance, and usefulness to readers.