core + bib (Bibliographic Extension): terms relating to books and bibliography.

lastReviewed

Canonical URL: http://schema.org/lastReviewed

Thing > Property > lastReviewed

Date on which the content on this web page was last reviewed for accuracy and/or completeness.

Usage: Between 100 and 1000 domains
Values expected to be one of these types
Date
Used on these types
WebPage

Schema Version 3.3