Commercial Events

Ceremony, an event of ritual significance, performed on a special occasion
Convention (meeting), a gathering of individuals engaged in some common interest
Event management, the organization of events
Festival, an event that celebrates some unique aspect of a community
Happening, a type of artistic performance
Media event, an event created for publicity
Party, a social, recreational or corporate event held
Sporting event, at which athletic competition takes place
Virtual event, a gathering of individuals within a virtual environment