Town crier, mayor or council.
Presenter
no
mair
An event planner is a person who makes invitations to a given event.
A person who sets up an event is called a party planner
artist
A monument
A witness.
diary
Allusion:a brief reference to a person, event, place, or phrase
A primary source.
There is typically an emcee who is the host and announces the performers on stage.