Conversation so far:
What is the corporation for Dwayne Johnson?
The Corporation was a villainous stable in the late 1990s in the World Wrestling Federation (WWF).
What can you tell me about the corporation with Dwayne Johnson
It was led by the McMahon family and was characterized by an authoritarian and corrupt attitude towards more rebellious wrestlers.
what did Dwayne Johnson do in the corporation
The Corporation existed 1998 and 1999 and feuded with Stone Cold Steve Austin, Mankind, D-Generation X (DX), and The Ministry of Darkness

Question: When did he join the corporation
Self-contained rewrite: When did Dwayne Johnson join the corporation