core + attic (Attic Area): these terms have been either depricated from the core or extentions, or removed from pending as not accepted into the full vocabulary.

yearsInOperation

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

Thing > Property > yearsInOperation

The age of the business.

Usage: Fewer than 10 domains
Values expected to be one of these types
QuantitativeValue
Used on these types
BusinessAudience

Schema Version 3.2