firstAppearance
A Schema.org Property
Usage:
< 1K Domains
Based on monthly aggregations from Google's web index.
(Google - August 2026)
- Canonical URL: https://schema.org/firstAppearance
- Check for open issues.
Indicates the first known occurrence of a Claim in some CreativeWork.
Values expected to be one of these types
Used on these types
Source
https://github.com/schemaorg/schemaorg/issues/1828