Witness?
Yes, there is such a word. A person who is present at an event or function -- someone who attends an event -- is an attendee. It's a perfectly legitimate word.
When a person imitates another person, it is called mimicking or copying.
a person from Belgium is called a Belgian.
The person who is speaking is called a speaker or a conversationalist.
An event occurring every two years is referred to as a biennial event. This pattern indicates that the event happens once every two years.
A person who sets up an event is called a party planner
A Wingman.
It is a reconstruction.
Full Moon
Accounts of an event recorded after the fact would be a primary source if the information is recorded immediately after the event by eye witnesses.
The ISBN of The Observers is 0312930747.
When the moon is fully visible to observers on Earth, it is called a full moon. This occurs when the sun, Earth, and moon are aligned with the Earth in the middle, causing the moon to be fully illuminated by the sun.
The Observers has 281 pages.
An event planner is a person who makes invitations to a given event.
A folktale based on a real person or event is often referred to as a "legend." Legends typically involve exaggerations or supernatural elements surrounding a historical figure or event, eventually becoming part of the collective folklore of a culture or community.
meaning words
It is called the "self-fulfilling prophecy," where a person's belief or statement about a future event influences their actions or behavior, ultimately leading to that event occurring.