Subclass of:

• aaao:ZE13 Speech Act
• crm:E85 Joining

Scope note:

Instances of this class comprise official joining events undertaken following formal procedures within a social grouping leading to formal change in the membership status of an actor relative to a group for the participating parties. The substance of declarative joining is an intentional, social act. 

Instances of ZE22 Declarative Joining come about when the specific social procedure required is intentionally and successfully enacted according to the prevalent rules. They end with the successful termination of the act or because of its premature termination.

A successful act of ZE22 Declarative Joining leads to the generation of an instance of ZE11 Membership Status, the institutional fact that thereafter mediates the social relation between the group and actor in question until it has been abrogated.

Examples:

• The declarative joining of the Greek Polity (E74) by Tom Hanks (E21) in July 2018 through the honourary naturalisation order signed by the Greek President. (https://www.bbc.com/news/entertainment-arts-53554002)
• The declarative joining of collectivity of West Berliners (E74) by John F. Kennedy Jr. (E21) in the "Ich bin ein Berliner" speech of 26 June 1963. (https://en.wikipedia.org/wiki/Ich_bin_ein_Berliner)

In First Order Logic:

• ZE22(x) ⇒ ZE13(x)
• ZE22(x) ⇒ E85(x)