RFC 6474: vCard Format Extensions: Place of Birth, Place and Date of Death

The base vCard 4.0 specification defines a large number of properties, including date of birth. This specification adds three new properties to vCard 4.0:…

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Outgoing relationships (3 related RFCs)

Normative reference — RFC 2119: Key words for use in RFCs to Indicate Requirement Levels
Normative reference — RFC 5234: Augmented BNF for Syntax Specifications: ABNF
Normative reference — RFC 6350: vCard Format Specification

Incoming relationships (2 related RFCs)

Normatively referenced by — RFC 9555: JSContact: Converting from and to vCard
Informatively referenced by — RFC 9553: JSContact: A JSON Representation of Contact Data